<s>
Angry	B-Application
Birds	I-Application
(	O
also	O
known	O
as	O
Angry	B-Application
Birds	I-Application
Classic	I-Application
,	O
later	O
remade	O
as	O
Rovio	O
Classics	O
:	O
Angry	B-Application
Birds	I-Application
)	O
is	O
a	O
2009	O
casual	O
puzzle	O
video	O
game	O
developed	O
by	O
Finnish	O
video	O
game	O
developer	O
Rovio	O
Entertainment	O
.	O
</s>
<s>
Inspired	O
primarily	O
by	O
a	O
sketch	O
of	O
stylized	O
wingless	O
birds	O
,	O
the	O
game	O
was	O
first	O
released	O
for	O
iOS	B-Application
and	O
Maemo	B-Operating_System
devices	O
starting	O
in	O
December	O
2009	O
.	O
</s>
<s>
By	O
October	O
2010	O
,	O
12	O
million	O
copies	O
of	O
the	O
game	O
had	O
been	O
purchased	O
from	O
the	O
iOS	B-Application
App	I-Application
Store	I-Application
,	O
which	O
prompted	O
the	O
developer	O
to	O
design	O
versions	O
for	O
other	O
touchscreen-based	O
smartphones	B-Application
,	O
most	O
notably	O
Android	B-Application
,	O
Symbian	B-Operating_System
,	O
Windows	B-Protocol
Phone	I-Protocol
,	O
and	O
BlackBerry	B-Application
10	I-Application
devices	O
.	O
</s>
<s>
The	O
series	O
has	O
since	O
expanded	O
to	O
include	O
titles	O
for	O
dedicated	O
video	B-Device
game	I-Device
consoles	I-Device
and	O
PCs	B-Device
.	O
</s>
<s>
A	O
sequel	O
,	O
Angry	B-Application
Birds	I-Application
2	I-Application
,	O
was	O
released	O
in	O
July	O
2015	O
for	O
iOS	B-Application
and	O
Android	B-Application
.	O
</s>
<s>
Around	O
April	O
2019	O
,	O
the	O
original	O
game	O
was	O
removed	O
from	O
the	O
App	B-Application
Store	I-Application
.	O
</s>
<s>
A	O
paid	O
recreation	O
of	O
the	O
game	O
's	O
content	O
from	O
2012	O
was	O
released	O
as	O
Rovio	O
Classics	O
:	O
Angry	B-Application
Birds	I-Application
on	O
March	O
31	O
,	O
2022	O
,	O
but	O
later	O
on	O
,	O
Rovio	O
mentioned	O
that	O
they	O
were	O
removing	O
it	O
from	O
the	O
Google	B-Application
Play	I-Application
Store	I-Application
on	O
February	O
23	O
,	O
2023	O
,	O
and	O
retitling	O
it	O
as	O
Red	O
’s	O
First	O
Flight	O
.	O
</s>
<s>
The	O
gameplay	O
revolves	O
around	O
players	O
using	O
a	O
slingshot	O
to	O
launch	O
the	O
birds	O
at	O
green	O
Pigs	B-Language
stationed	O
in	O
or	O
around	O
various	O
structures	O
,	O
with	O
the	O
intent	O
of	O
destroying	O
all	O
the	O
Pigs	B-Language
on	O
the	O
playing	O
field	O
.	O
</s>
<s>
Rovio	O
Mobile	O
has	O
supported	O
Angry	B-Application
Birds	I-Application
with	O
numerous	O
free	O
updates	O
that	O
add	O
additional	O
game	O
content	O
,	O
and	O
the	O
company	O
has	O
also	O
released	O
stand-alone	O
holiday	O
and	O
promotional	O
versions	O
of	O
the	O
game	O
.	O
</s>
<s>
Angry	B-Application
Birds	I-Application
was	O
eventually	O
praised	O
by	O
critics	O
for	O
its	O
success	O
at	O
leveraging	O
a	O
combination	O
of	O
addictive	O
gameplay	O
,	O
comical	O
style	O
,	O
and	O
low	O
price	O
into	O
a	B-Application
viable	I-Application
franchise	I-Application
with	O
long-term	O
potential	O
for	O
profit	O
.	O
</s>
<s>
The	O
game	O
's	O
popularity	O
has	O
led	O
to	O
the	O
release	O
of	O
Angry	B-Application
Birds	I-Application
games	O
for	O
personal	B-Device
computers	I-Device
and	O
gaming	O
consoles	O
,	O
created	O
a	O
market	O
for	O
merchandise	O
featuring	O
the	O
Angry	B-Application
Birds	I-Application
characters	O
,	O
a	O
2016	O
feature-length	O
animated	O
film	O
,	O
a	O
2019	O
sequel	O
to	O
said	O
film	O
,	O
and	O
several	O
seasons	O
of	O
television	O
cartoons	O
.	O
</s>
<s>
The	O
Angry	B-Application
Birds	I-Application
series	O
had	O
a	O
combined	O
tally	O
of	O
over	O
five	O
billion	O
downloads	O
across	O
all	O
platforms	O
,	O
as	O
of	O
April	O
2022	O
,	O
including	O
special	O
editions	O
.	O
</s>
<s>
In	O
Angry	B-Application
Birds	I-Application
,	O
the	O
player	O
controls	O
a	O
flock	O
of	O
multi-colored	O
birds	O
that	O
are	O
attempting	O
to	O
save	O
their	O
eggs	O
from	O
green-colored	O
pigs	B-Language
.	O
</s>
<s>
In	O
each	O
stage	O
of	O
the	O
gameplay	O
,	O
the	O
pigs	B-Language
are	O
sheltered	O
by	O
structures	O
made	O
of	O
various	O
materials	O
such	O
as	O
wood	O
,	O
glass	O
,	O
and	O
stone	O
resembling	O
children	O
's	O
toy	O
building	O
blocks	O
.	O
</s>
<s>
The	O
objective	O
of	O
the	O
game	O
is	O
to	O
eliminate	O
all	O
the	O
pigs	B-Language
on	O
the	O
level	O
.	O
</s>
<s>
Using	O
a	O
slingshot	O
,	O
players	O
launch	O
a	O
limited	O
set	O
of	O
birds	O
with	O
the	O
goal	O
of	O
either	O
striking	O
the	O
enemy	O
pigs	B-Language
directly	O
or	O
damaging	O
their	O
surrounding	O
structures	O
,	O
causing	O
the	O
blocks	O
to	O
collapse	O
and	O
pop	O
the	O
pigs	B-Language
.	O
</s>
<s>
In	O
various	O
stages	O
of	O
the	O
game	O
,	O
additional	O
objects	O
such	O
as	O
TNT	O
crates	O
and	O
rocks	O
are	O
incorporated	O
into	O
the	O
structures	O
,	O
and	O
power-ups	O
may	O
be	O
used	O
to	O
enhance	O
the	O
birds	O
to	O
attack	O
hard-to-reach	O
pigs	B-Language
.	O
</s>
<s>
The	O
pigs	B-Language
also	O
vary	O
,	O
with	O
hardiness	O
relative	O
to	O
their	O
size	O
.	O
</s>
<s>
Small	O
pigs	B-Language
are	O
weaker	O
and	O
are	O
easily	O
vanquished	O
by	O
direct	O
hits	O
or	O
by	O
debris	O
from	O
the	O
damaged	O
structures	O
,	O
while	O
larger	O
pigs	B-Language
are	O
able	O
to	O
withstand	O
more	O
damage	O
before	O
succumbing	O
to	O
defeat	O
.	O
</s>
<s>
In	O
addition	O
,	O
some	O
pigs	B-Language
wear	O
hats	O
or	O
armor	O
,	O
making	O
them	O
even	O
more	O
resistant	O
to	O
damage	O
.	O
</s>
<s>
If	O
all	O
of	O
the	O
pigs	B-Language
are	O
eliminated	O
after	O
the	O
last	O
bird	O
is	O
launched	O
,	O
the	O
level	O
is	O
cleared	O
and	O
the	O
next	O
level	O
is	O
unlocked	O
.	O
</s>
<s>
If	O
all	O
of	O
the	O
birds	O
run	O
out	O
and	O
the	O
pigs	B-Language
are	O
not	O
defeated	O
,	O
the	O
level	O
is	O
failed	O
and	O
must	O
be	O
repeated	O
.	O
</s>
<s>
Points	O
are	O
scored	O
for	O
each	O
pig	B-Language
defeated	O
as	O
well	O
as	O
for	O
damage	O
to	O
,	O
or	O
destruction	O
of	O
,	O
structures	O
,	O
and	O
hefty	O
bonus	O
points	O
are	O
awarded	O
for	O
any	O
unused	O
birds	O
.	O
</s>
<s>
One	O
such	O
proposal	O
came	O
from	O
senior	O
game	O
designer	O
Jaakko	B-Application
Iisalo	I-Application
in	O
the	O
form	O
of	O
a	O
simulated	O
screenshot	O
featuring	O
some	O
angry-looking	O
birds	O
with	O
no	O
visible	O
legs	O
or	O
wings	O
.	O
</s>
<s>
In	O
early	O
2009	O
,	O
physics	O
games	O
,	O
such	O
as	O
Crush	B-Operating_System
the	I-Operating_System
Castle	I-Operating_System
,	O
were	O
popular	O
flash-based	O
web	O
games	O
,	O
so	O
the	O
Rovio	O
team	O
was	O
inspired	O
by	O
these	O
games	O
.	O
</s>
<s>
During	O
the	O
development	O
of	O
Angry	B-Application
Birds	I-Application
,	O
the	O
staff	O
realized	O
the	O
birds	O
needed	O
an	O
enemy	O
.	O
</s>
<s>
At	O
the	O
time	O
,	O
the	O
"	O
swine	O
flu	O
"	O
epidemic	O
was	O
in	O
the	O
news	O
,	O
so	O
the	O
staff	O
made	O
the	O
birds	O
 '	O
enemies	O
pigs	B-Language
.	O
</s>
<s>
Angry	B-Application
Birds	I-Application
was	O
the	O
studio	O
's	O
52nd	O
produced	O
game	O
and	O
on	O
its	O
initial	O
release	O
,	O
the	O
game	O
did	O
not	O
sell	O
many	O
copies	O
.	O
</s>
<s>
After	O
Angry	B-Application
Birds	I-Application
was	O
a	O
featured	O
app	O
on	O
the	O
UK	O
App	B-Application
Store	I-Application
in	O
February	O
2010	O
and	O
quickly	O
reached	O
No	O
.	O
</s>
<s>
1	O
spot	O
on	O
the	O
paid	O
apps	O
chart	O
in	O
the	O
US	O
App	B-Application
Store	I-Application
in	O
the	O
middle	O
of	O
2010	O
,	O
staying	O
in	O
that	O
milestone	O
for	O
275	O
days	O
.	O
</s>
<s>
The	O
initial	O
cost	O
to	O
develop	O
Angry	B-Application
Birds	I-Application
was	O
estimated	O
to	O
exceed	O
€100	O
,	O
000	O
,	O
not	O
including	O
costs	O
for	O
the	O
subsequent	O
updates	O
.	O
</s>
<s>
In	O
terms	O
of	O
publishing	O
for	O
the	O
iOS	B-Application
version	O
,	O
Rovio	O
partnered	O
with	O
distributor	O
Chillingo	O
to	O
publish	O
the	O
game	O
to	O
the	O
App	B-Application
Store	I-Application
.	O
</s>
<s>
Chillingo	O
claimed	O
to	O
have	O
participated	O
in	O
final	O
game	O
polishing	O
,	O
such	O
as	O
adding	O
visible	O
trajectory	O
lines	O
,	O
pinch	B-Application
to	I-Application
zoom	I-Application
,	O
pigs	B-Language
 '	O
grunts	O
,	O
birds	O
 '	O
somersaults	O
on	O
landing	O
.	O
</s>
<s>
Since	O
then	O
Rovio	O
has	O
self-published	O
almost	O
all	O
of	O
the	O
later	O
ports	O
of	O
the	O
game	O
,	O
with	O
the	O
exception	O
of	O
the	O
PSP	B-Operating_System
version	O
,	O
which	O
was	O
produced	O
under	O
license	O
by	O
Abstraction	O
Games	O
.	O
</s>
<s>
As	O
the	O
team	O
began	O
working	O
on	O
a	O
version	O
for	O
Android	B-Application
systems	I-Application
,	O
they	O
observed	O
a	O
large	O
number	O
of	O
configurations	O
of	O
device	O
types	O
and	O
versions	O
of	O
the	O
Android	B-Application
software	I-Application
.	O
</s>
<s>
The	O
number	O
of	O
combinations	O
of	O
software	O
version	O
,	O
processor	B-General_Concept
speed	O
and	O
even	O
user	B-Application
interfaces	I-Application
was	O
significantly	O
larger	O
than	O
that	O
for	O
the	O
iOS	B-Application
version	O
.	O
</s>
<s>
Ultimately	O
,	O
the	O
team	O
settled	O
on	O
a	O
minimum	O
set	O
of	O
requirements	O
,	O
even	O
though	O
that	O
left	O
nearly	O
30	O
types	O
of	O
Android	B-Application
phones	I-Application
unable	O
to	O
run	O
the	O
game	O
,	O
including	O
some	O
newly	O
released	O
phones	O
.	O
</s>
<s>
One	O
month	O
after	O
the	O
initial	O
release	O
on	O
Android	B-Application
,	O
Rovio	O
Mobile	O
began	O
designing	O
a	O
lite	O
version	O
of	O
the	O
game	O
for	O
these	O
other	O
devices	O
.	O
</s>
<s>
In	O
early	O
2010	O
,	O
Rovio	O
began	O
developing	O
a	O
version	O
of	O
Angry	B-Application
Birds	I-Application
for	O
Facebook	B-Application
.	I-Application
</s>
<s>
They	O
ca	O
n’t	O
just	O
take	O
FarmVille	B-Application
and	O
throw	O
it	O
on	O
mobile	O
and	O
see	O
what	O
sticks	O
.	O
</s>
<s>
The	B-Application
Facebook	I-Application
version	O
incorporate	O
social-gaming	O
concepts	O
and	O
in-game	O
purchases	O
and	O
entered	O
beta-testing	O
in	O
April	O
2011	O
;	O
the	O
game	O
became	O
officially	O
available	O
on	O
Facebook	B-Application
in	O
February	O
2012	O
as	O
Angry	B-Application
Birds	I-Application
Facebook	I-Application
(	O
later	O
Angry	B-Application
Birds	I-Application
Friends	I-Application
)	O
.	O
</s>
<s>
Improvements	O
for	O
the	O
game	O
include	O
the	O
ability	O
to	O
synchronize	O
the	O
player	O
's	O
progress	O
across	O
multiple	O
devices	O
;	O
for	O
example	O
,	O
a	O
player	O
who	O
completes	O
a	O
level	O
on	O
an	O
Android	B-Application
phone	I-Application
can	O
log	O
into	O
their	O
copy	O
of	O
the	O
game	O
on	O
an	O
Android	B-Application
tablet	O
and	O
see	O
the	O
same	O
statistics	O
and	O
level	O
of	O
progress	O
.	O
</s>
<s>
The	O
initial	O
iOS	B-Application
version	O
of	O
the	O
game	O
,	O
which	O
soft	O
launched	O
in	O
Finland	O
on	O
December	O
1	O
,	O
2009	O
and	O
released	O
internationally	O
10	O
days	O
later	O
,	O
included	O
a	O
single	O
episode	O
entitled	O
"	O
Poached	O
Eggs	O
"	O
which	O
contained	O
three	O
themed	O
chapters	O
,	O
each	O
with	O
21	O
levels	O
.	O
</s>
<s>
A	O
fifth	O
episode	O
,	O
called	O
"	O
Ham	O
'	O
Em	O
High	O
"	O
,	O
launched	O
on	O
December	O
23	O
,	O
2010	O
,	O
in	O
celebration	O
of	O
the	O
game	O
's	O
first	O
year	O
in	O
the	O
iOS	B-Application
App	I-Application
Store	I-Application
.	O
</s>
<s>
The	O
Mighty	O
Eagle	O
is	O
offered	O
as	O
a	O
one-time	O
,	O
in-game	O
purchase	O
,	O
and	O
was	O
initially	O
only	O
available	O
for	O
iOS	B-Application
,	O
as	O
its	O
App	B-Application
Store	I-Application
customers	O
have	O
iTunes	B-Operating_System
accounts	O
with	O
pre-linked	O
credit	O
cards	O
.	O
</s>
<s>
In	O
late	O
2011	O
,	O
Rovio	O
also	O
added	O
the	O
Mighty	O
Eagle	O
to	O
the	O
Chrome	B-Application
App	O
version	O
of	O
the	O
game	O
.	O
</s>
<s>
Rovio	O
has	O
begun	O
testing	O
an	O
Android	B-Application
update	O
called	O
the	O
"	O
Bad	O
Piggy	O
Bank	O
"	O
with	O
the	O
Elisa	O
wireless	O
service	O
in	O
Finland	O
and	O
T-Mobile	O
,	O
which	O
allows	O
users	O
to	O
charge	O
in-app	O
purchases	O
,	O
such	O
as	O
the	O
Mighty	O
Eagle	O
,	O
to	O
their	O
mobile	O
phone	O
bills	O
.	O
</s>
<s>
The	O
service	O
went	O
live	O
on	O
Android	B-Application
with	O
the	O
release	O
of	O
version	O
2.2.0	O
in	O
August	O
2012	O
,	O
using	O
Google	B-Application
Play	I-Application
's	O
transaction	O
system	O
,	O
which	O
allows	O
both	O
mobile	O
billing	O
and	O
credit	O
cards	O
,	O
allowing	O
both	O
Android	B-Application
phones	I-Application
and	O
WiFi-only	O
tablets	O
to	O
unlock	O
the	O
features	O
.	O
</s>
<s>
This	O
version	O
also	O
added	O
the	O
powerups	O
from	O
the	B-Application
Facebook	I-Application
version	O
and	O
added	O
an	O
option	O
to	O
pay	O
to	O
remove	O
ads	O
,	O
allowing	O
Android	B-Application
players	O
to	O
enjoy	O
the	O
game	O
ad-free	O
as	O
iOS	B-Application
players	O
do	O
.	O
</s>
<s>
The	O
seventh	O
update	O
,	O
"	O
Birdday	O
Party	O
"	O
,	O
was	O
released	O
on	O
December	O
11	O
,	O
2011	O
to	O
commemorate	O
the	O
second	O
anniversary	O
of	O
the	O
first	O
release	O
of	O
the	O
iOS	B-Application
version	O
into	O
the	O
iTunes	B-Application
App	I-Application
Store	I-Application
.	O
</s>
<s>
It	O
included	O
15	O
new	O
birthday	O
cake-themed	O
levels	O
,	O
as	O
well	O
as	O
updated	O
graphics	O
and	O
the	O
addition	O
of	O
elements	O
from	O
the	O
spin-off	O
games	O
,	O
such	O
as	O
the	O
scoring	O
graphic	O
seen	O
in	O
Angry	B-Application
Birds	I-Application
Rio	I-Application
and	O
the	O
introduction	O
of	O
"	O
Bubbles	O
"	O
,	O
the	O
Orange	O
Bird	O
that	O
first	O
appeared	O
in	O
Angry	B-Application
Birds	I-Application
Seasons	I-Application
.	O
</s>
<s>
The	O
update	O
was	O
later	O
released	O
for	O
Android	B-Application
and	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
The	O
eighth	O
update	O
was	O
released	O
initially	O
to	O
iOS	B-Application
on	O
March	O
20	O
,	O
2012	O
in	O
a	O
lead-up	O
to	O
the	O
release	O
of	O
Angry	B-Application
Birds	I-Application
Space	I-Application
.	O
</s>
<s>
The	O
new	O
update	O
included	O
an	O
animated	O
tutorial	O
,	O
enhanced	O
gameplay	O
,	O
all	O
new	O
UI	O
graphics	O
,	O
and	O
the	O
first	O
15	O
levels	O
of	O
"	O
Surf	O
and	O
Turf	O
,	O
"	O
the	O
Angry	O
Birds	O
Facebook-exclusive	O
episode	O
(	O
see	O
below	O
)	O
;	O
another	O
15	O
levels	O
were	O
added	O
later	O
on	O
August	O
2nd	O
,	O
2012	O
,	O
with	O
the	O
iOS	B-Application
version	O
receiving	O
the	O
power-ups	O
first	O
seen	O
in	O
the	B-Application
Facebook	I-Application
version	O
.	O
</s>
<s>
On	O
October	O
9	O
,	O
2012	O
,	O
the	O
final	O
chapter	O
of	O
"	O
Surf	O
and	O
Turf	O
"	O
was	O
released	O
,	O
along	O
with	O
a	O
new	O
episode	O
called	O
"	O
Bad	B-Application
Piggies	I-Application
"	O
meant	O
to	O
advertise	O
the	O
new	O
Rovio	O
game	O
,	O
Bad	B-Application
Piggies	I-Application
.	O
</s>
<s>
Another	O
update	O
was	O
released	O
on	O
December	O
11	O
,	O
2012	O
,	O
the	O
3rd	O
anniversary	O
of	O
the	O
game	O
's	O
release	O
,	O
with	O
15	O
new	O
levels	O
to	O
"	O
Birdday	O
Party	O
"	O
and	O
15	O
new	O
levels	O
to	O
"	O
Bad	B-Application
Piggies	I-Application
"	O
.	O
</s>
<s>
15	O
final	O
levels	O
were	O
later	O
released	O
for	O
the	O
"	O
Bad	B-Application
Piggies	I-Application
"	O
episode	O
on	O
March	O
7	O
,	O
2013	O
.	O
</s>
<s>
On	O
the	O
same	O
day	O
these	O
final	O
15	O
levels	O
were	O
released	O
,	O
Angry	B-Application
Birds	I-Application
became	O
"	O
Free	O
App	O
of	O
the	O
Week	O
"	O
on	O
the	O
Apple	B-Application
App	I-Application
Store	I-Application
until	O
March	O
14	O
,	O
2013	O
and	O
became	O
an	O
instant	O
hit	O
on	O
the	O
Top	O
Free	O
App	O
charts	O
on	O
the	O
App	B-Application
Store	I-Application
until	O
March	O
18	O
,	O
2013	O
,	O
when	O
the	O
app	O
returned	O
to	O
the	O
normal	O
price	O
of	O
$0.99	O
.	O
</s>
<s>
On	O
June	O
17	O
,	O
2013	O
,	O
Rovio	O
teased	O
on	O
its	O
Facebook	B-Application
page	O
that	O
Red	O
,	O
the	O
main	O
protagonist	O
of	O
the	O
game	O
,	O
would	O
receive	O
an	O
ability	O
in	O
a	O
new	O
episode	O
.	O
</s>
<s>
On	O
June	O
26	O
,	O
2013	O
,	O
Rovio	O
released	O
a	O
YouTube	B-General_Concept
video	I-General_Concept
,	O
uncovering	O
three	O
new	O
facts	O
:	O
the	O
episode	O
would	O
be	O
called	O
Red	O
's	O
Mighty	O
Feathers	O
,	O
the	O
update	O
would	O
come	O
in	O
July	O
,	O
and	O
the	O
Angry	B-Application
Birds	I-Application
app	O
icon	O
would	O
receive	O
a	O
new	O
design	O
.	O
</s>
<s>
Instead	O
of	O
knocking	O
over	O
the	O
pigs	B-Language
 '	O
castles	O
,	O
the	O
player	O
's	O
goal	O
is	O
to	O
keep	O
the	O
pigs	B-Language
from	O
stealing	O
the	O
egg	O
and	O
leaving	O
the	O
playing	O
field	O
with	O
it	O
.	O
</s>
<s>
The	O
pigs	B-Language
arrive	O
in	O
waves	O
of	O
complicated	O
vehicles	O
,	O
and	O
the	O
only	O
available	O
bird	O
is	O
Red	O
,	O
whose	O
new	O
ability	O
is	O
to	O
target	O
the	O
nearest	O
pig	B-Language
.	O
</s>
<s>
The	O
second	O
is	O
to	O
pop	O
all	O
the	O
pigs	B-Language
in	O
the	O
level	O
.	O
</s>
<s>
On	O
November	O
26	O
,	O
2013	O
,	O
Rovio	O
added	O
a	O
30-level	O
episode	O
called	O
Short	O
Fuse	O
that	O
transforms	O
the	O
Bomb	O
's	O
explosions	O
into	O
highly-destructive	O
electrical	O
pulses	O
,	O
adds	O
a	O
powerup	O
that	O
transforms	O
any	O
Bird	O
into	O
a	O
Bomb	O
Bird	O
and	O
3	O
different	O
potions	O
that	O
can	O
change	O
the	O
pigs	B-Language
.	O
</s>
<s>
On	O
July	O
22	O
,	O
2014	O
,	O
a	O
15-level	O
episode	O
called	O
"	O
Flock	O
Favorites	O
"	O
that	O
is	O
inspired	O
by	O
fans	O
 '	O
favorite	O
episodes	O
(	O
Poached	O
Eggs	O
,	O
Danger	O
Above	O
,	O
Mine	O
and	O
Dine	O
,	O
Bad	B-Application
Piggies	I-Application
,	O
Red	O
's	O
Mighty	O
Feathers	O
,	O
Short	O
Fuse	O
,	O
and	O
Surf	O
and	O
Turf	O
)	O
was	O
added	O
.	O
</s>
<s>
On	O
November	O
23	O
,	O
2014	O
,	O
in	O
partnership	O
with	O
(	O
RED	O
)	O
and	O
Apple	O
Inc.	O
,	O
an	O
update	O
to	O
the	O
app	O
was	O
released	O
that	O
was	O
exclusive	O
to	O
iOS	B-Application
.	O
</s>
<s>
In	O
this	O
update	O
,	O
there	O
was	O
an	O
added	O
special	O
(	O
RED	O
)	O
-themed	O
Golden	O
Egg	O
level	O
and	O
Red	O
's	O
power	O
from	O
the	O
Red	O
's	O
Mighty	O
Feathers	O
episode	O
as	O
a	O
stand-alone	O
power-up	O
,	O
that	O
when	O
purchased	O
,	O
can	O
be	O
used	O
indefinitely	O
(	O
1	O
use	O
per	O
level	O
)	O
and	O
100%	O
of	O
the	O
money	O
went	O
to	O
the	O
Global	O
Fund	O
to	O
end	O
AIDS	B-Device
.	O
</s>
<s>
On	O
December	O
11	O
,	O
2014	O
,	O
in	O
honor	O
of	O
the	O
Angry	B-Application
Birds	I-Application
 '	O
5th	O
birthday	O
,	O
an	O
episode	O
with	O
30	O
user-inspired	O
levels	O
was	O
added	O
.	O
</s>
<s>
On	O
December	O
11	O
,	O
2015	O
,	O
in	O
honor	O
of	O
Angry	B-Application
Birds	I-Application
6th	O
birthday	O
,	O
new	O
15	O
levels	O
were	O
added	O
to	O
Birdday	O
Party	O
.	O
</s>
<s>
On	O
November	O
10	O
,	O
2016	O
,	O
21	O
levels	O
were	O
released	O
as	O
singular	O
episode	O
called	O
"	O
Bird	O
Island	O
"	O
that	O
promoted	O
the	O
Angry	B-Application
Birds	I-Application
Movie	O
,	O
though	O
the	O
levels	O
did	O
n't	O
unlock	O
for	O
players	O
until	O
November	O
17th	O
.	O
</s>
<s>
On	O
December	O
10	O
,	O
2016	O
,	O
in	O
honor	O
of	O
Angry	B-Application
Birds	I-Application
 '	O
seventh	O
birthday	O
15	O
more	O
levels	O
were	O
released	O
as	O
an	O
addition	O
to	O
Birdday	O
Party	O
(	O
though	O
the	O
levels	O
did	O
n't	O
unlock	O
until	O
December	O
17th	O
)	O
.	O
</s>
<s>
Since	O
its	O
initial	O
release	O
for	O
the	O
Nokia	B-Application
N900	I-Application
multimedia	O
Internet	O
device	O
,	O
and	O
Apple	O
's	O
iPhone	O
and	O
iPod	O
Touch	O
mobile	O
digital	O
devices	O
,	O
Rovio	O
has	O
released	O
versions	O
of	O
Angry	B-Application
Birds	I-Application
for	O
additional	O
devices	O
.	O
</s>
<s>
An	O
iPad-exclusive	O
version	O
,	O
Angry	B-Application
Birds	I-Application
HD	I-Application
,	O
was	O
released	O
with	O
the	O
iPad	B-Device
mobile	O
digital	O
device	O
in	O
April	O
2010	O
.	O
</s>
<s>
In	O
August	O
2010	O
,	O
Angry	B-Application
Birds	I-Application
was	O
made	O
available	O
to	O
the	O
Palm	B-Application
Pre	I-Application
phone	O
running	O
Palm	O
's	O
webOS	B-Operating_System
operating	O
system	O
through	O
its	O
App	O
Catalog	O
online	O
store	O
.	O
</s>
<s>
Symbian^3	B-Operating_System
phones	O
received	O
a	O
version	O
of	O
the	O
game	O
in	O
October	O
2010	O
,	O
which	O
initially	O
includes	O
only	O
the	O
"	O
Poached	O
Eggs	O
"	O
and	O
"	O
Mighty	O
Hoax	O
"	O
episodes	O
.	O
</s>
<s>
Angry	B-Application
Birds	I-Application
works	O
on	O
Kindle	B-Application
Fire	I-Application
and	O
Kindle	B-Application
Fire	I-Application
HD	I-Application
.	O
</s>
<s>
In	O
May	O
2010	O
,	O
Rovio	O
announced	O
plans	O
for	O
a	O
version	O
for	O
devices	O
using	O
Google	B-Application
's	I-Application
Android	I-Application
operating	O
system	O
,	O
with	O
a	O
beta	O
version	O
being	O
released	O
through	O
the	O
Android	B-Application
Market	I-Application
(	O
now	O
Google	B-Application
Play	I-Application
)	O
in	O
September	O
2010	O
.	O
</s>
<s>
The	O
full	O
Android	B-Application
version	O
of	O
the	O
game	O
was	O
first	O
released	O
instead	O
on	O
GetJar	B-Application
in	O
October	O
2010	O
,	O
though	O
it	O
was	O
subsequently	O
released	O
on	O
Android	B-Application
Market	I-Application
within	O
days	O
.	O
</s>
<s>
Rovio	O
officials	O
noted	O
that	O
GetJar	B-Application
had	O
a	O
more	O
global	O
reach	O
than	O
Android	B-Application
Market	I-Application
,	O
and	O
GetJar	B-Application
's	O
availability	O
on	O
other	O
smartphone	B-Application
platforms	O
(	O
including	O
Symbian	B-Operating_System
)	O
would	O
make	O
cross-platform	O
promotion	O
of	O
the	O
game	O
easier	O
.	O
</s>
<s>
Unlike	O
the	O
previous	O
versions	O
,	O
Angry	B-Application
Birds	I-Application
for	O
Android	B-Application
is	O
a	O
free	O
,	O
ad-supported	O
application	O
,	O
as	O
paid	O
applications	O
are	O
n't	O
available	O
on	O
Android	B-Application
in	O
some	O
nations	O
.	O
</s>
<s>
In	O
October	O
2010	O
,	O
Microsoft	O
suggested	O
on	O
one	O
of	O
its	O
websites	O
that	O
a	O
Windows	B-Protocol
Phone	I-Protocol
version	O
of	O
Angry	B-Application
Birds	I-Application
was	O
in	O
development	O
.	O
</s>
<s>
Rovio	O
complained	O
that	O
Microsoft	O
had	O
not	O
asked	O
permission	O
to	O
make	O
such	O
a	O
statement	O
,	O
noting	O
that	O
at	O
that	O
time	O
it	O
had	O
not	O
committed	O
to	O
design	O
a	O
Windows	B-Protocol
Phone	I-Protocol
version	O
.	O
</s>
<s>
Although	O
Rovio	O
asked	O
Microsoft	O
to	O
revise	O
its	O
site	O
to	O
remove	O
references	O
to	O
the	O
game	O
,	O
a	O
Windows	B-Protocol
Phone	I-Protocol
version	O
was	O
ultimately	O
released	O
in	O
June	O
2011	O
.	O
</s>
<s>
First	O
,	O
Sony	O
announced	O
the	O
release	O
of	O
Angry	B-Application
Birds	I-Application
for	O
its	O
PlayStation	B-Operating_System
Portable	I-Operating_System
handheld	O
system	O
in	O
the	O
form	O
of	O
a	O
PlayStation	B-Device
mini	I-Device
game	O
that	O
includes	O
nearly	O
200	O
levels	O
from	O
the	O
original	O
game	O
;	O
the	O
version	O
is	O
also	O
playable	O
on	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
.	O
</s>
<s>
Next	O
,	O
Rovio	O
announced	O
the	O
release	O
of	O
a	O
Windows	B-Application
version	O
of	O
the	O
game	O
on	O
January	O
4	O
,	O
2011	O
,	O
available	O
for	O
sale	O
exclusively	O
from	O
the	O
Intel	B-Application
AppUp	I-Application
center	O
,	O
which	O
included	O
195	O
levels	O
at	O
launch	O
and	O
plans	O
for	O
exclusive	O
features	O
not	O
available	O
on	O
the	O
smartphone	B-Application
versions	O
.	O
</s>
<s>
One	O
day	O
after	O
the	O
Windows	B-Application
version	O
was	O
released	O
,	O
the	O
Mac	B-Application
App	I-Application
Store	I-Application
launched	O
,	O
with	O
one	O
of	O
the	O
first	O
offerings	O
being	O
its	O
own	O
version	O
of	O
Angry	B-Application
Birds	I-Application
.	O
</s>
<s>
Ports	O
of	O
Angry	B-Application
Birds	I-Application
have	O
also	O
been	O
proposed	O
for	O
the	B-Operating_System
Wii	I-Operating_System
and	O
Nintendo	B-Device
DS	I-Device
systems	O
,	O
with	O
the	O
former	O
becoming	O
realized	O
through	O
Angry	B-Application
Birds	I-Application
Trilogy	I-Application
(	O
see	O
below	O
)	O
.	O
</s>
<s>
A	O
3D-enhanced	O
version	O
of	O
the	O
game	O
was	O
proposed	O
for	O
release	O
on	O
the	O
LG	B-Application
Optimus	I-Application
3D	I-Application
in	O
October	O
2011	O
.	O
</s>
<s>
The	O
popularity	O
of	O
Angry	B-Application
Birds	I-Application
has	O
helped	O
spread	O
the	O
game	O
to	O
other	O
devices	O
that	O
were	O
not	O
initially	O
designed	O
as	O
gaming	O
machines	O
.	O
</s>
<s>
Barnes	O
&	O
Noble	O
announced	O
that	O
a	O
future	O
update	O
for	O
its	O
Nook	B-Application
Color	I-Application
e-reader	O
will	O
let	O
the	O
Android-based	O
device	O
run	O
applications	O
,	O
including	O
a	O
port	O
of	O
Angry	B-Application
Birds	I-Application
.	O
</s>
<s>
In	O
June	O
2011	O
,	O
Rovio	O
announced	O
plans	O
to	O
partner	O
with	O
Roku	O
to	O
include	O
a	O
version	O
of	O
Angry	B-Application
Birds	I-Application
on	O
a	O
new	O
model	O
of	O
its	O
Internet-connected	O
set-top	O
box	O
,	O
the	O
Roku	O
2	O
XS	O
.	O
</s>
<s>
In	O
May	O
2011	O
,	O
an	O
in-browser	O
HTML5	B-Application
version	O
of	O
Angry	B-Application
Birds	I-Application
was	O
released	O
in	O
beta	O
form	O
.	O
</s>
<s>
The	O
game	O
uses	O
WebGL	B-Library
or	O
Canvas	B-Language
and	O
is	O
distributed	O
through	O
the	O
Chrome	B-Application
Web	I-Application
Store	I-Application
for	O
use	O
with	O
Google	O
's	O
Chrome	B-Application
web	I-Application
browser	I-Application
.	O
</s>
<s>
It	O
runs	O
on	O
any	O
WebGL	B-Library
-	O
or	O
Canvas-enabled	O
browser	O
,	O
and	O
features	O
exclusive	O
content	O
when	O
played	O
on	O
Chrome	B-Application
,	O
such	O
as	O
exclusive	O
levels	O
and	O
the	O
so-called	O
"	O
Chrome	B-Application
Bombs	O
"	O
.	O
</s>
<s>
In	O
October	O
2011	O
,	O
during	O
Nokia	O
World	O
2011	O
,	O
it	O
was	O
announced	O
that	O
Angry	B-Application
Birds	I-Application
would	O
come	O
preloaded	O
in	O
Nokia	O
's	O
Asha	O
series	O
of	O
Series	B-Operating_System
40	I-Operating_System
touch	O
handsets	O
,	O
aimed	O
at	O
emerging	O
markets	O
such	O
as	O
India	O
,	O
China	O
and	O
South	O
Africa	O
.	O
</s>
<s>
In	O
December	O
2011	O
,	O
Rovio	O
released	O
Angry	B-Application
Birds	I-Application
HD	I-Application
,	O
Angry	B-Application
Birds	I-Application
Seasons	I-Application
HD	O
,	O
and	O
Angry	B-Application
Birds	I-Application
Rio	I-Application
HD	O
on	O
the	O
BlackBerry	B-Application
PlayBook	I-Application
tablet	O
from	O
Research	O
In	O
Motion	O
.	O
</s>
<s>
In	O
January	O
2012	O
,	O
Angry	B-Application
Birds	I-Application
was	O
released	O
for	O
devices	O
using	O
Bada	B-Operating_System
OS	I-Operating_System
.	O
</s>
<s>
In	O
February	O
2012	O
,	O
Angry	B-Application
Birds	I-Application
made	O
its	O
official	O
debut	O
on	O
Facebook	B-Application
.	I-Application
</s>
<s>
It	O
is	O
known	O
as	O
Angry	B-Application
Birds	I-Application
Friends	I-Application
since	O
May	O
23	O
,	O
2012	O
.	O
</s>
<s>
The	B-Application
Facebook	I-Application
version	O
adds	O
a	O
number	O
of	O
new	O
power-up	O
items	O
,	O
with	O
a	O
maximum	O
of	O
two	O
in	O
use	O
per	O
level	O
.	O
</s>
<s>
"	O
Surf	O
and	O
Turf	O
"	O
would	O
later	O
be	O
included	O
in	O
the	O
original	O
mobile	O
versions	O
of	O
the	O
game	O
,	O
starting	O
with	O
iOS	B-Application
.	O
</s>
<s>
The	B-Application
Facebook	I-Application
version	O
features	O
weekly	O
tournaments	O
among	O
your	O
friends	O
,	O
with	O
the	O
top	O
3	O
winners	O
earning	O
free	O
in-game	O
"	O
Bird	O
Coins	O
"	O
which	O
can	O
be	O
used	O
to	O
purchase	O
power-ups	O
.	O
</s>
<s>
There	O
was	O
a	O
unique	O
Green	O
Day	O
themed	O
episode	O
in	O
the	B-Application
Facebook	I-Application
version	O
of	O
the	O
game	O
,	O
however	O
it	O
was	O
removed	O
in	O
December	O
2012	O
.	O
</s>
<s>
At	O
the	O
2012	O
Electronic	O
Entertainment	O
Expo	O
in	O
Los	O
Angeles	O
,	O
California	O
,	O
Rovio	O
and	O
distribution	O
partner	O
Activision	O
announced	O
plans	O
to	O
bring	O
Angry	B-Application
Birds	I-Application
and	O
two	O
of	O
its	O
spin-off	O
games	O
,	O
Angry	B-Application
Birds	I-Application
Seasons	I-Application
and	O
Angry	B-Application
Birds	I-Application
Rio	I-Application
to	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
,	O
Xbox	B-Operating_System
360	I-Operating_System
,	O
and	O
Nintendo	B-Operating_System
3DS	I-Operating_System
systems	O
.	O
</s>
<s>
Bundled	O
together	O
as	O
Angry	B-Application
Birds	I-Application
Trilogy	I-Application
,	O
the	O
games	O
were	O
built	O
specifically	O
for	O
their	O
respective	O
consoles	O
,	O
taking	O
advantage	O
of	O
their	O
unique	O
features	O
,	O
such	O
as	O
support	O
for	O
PlayStation	B-Device
Move	I-Device
,	O
Kinect	B-Algorithm
,	O
high-definition	O
displays	O
,	O
and	O
glasses-free	O
3D	B-Algorithm
visuals	I-Algorithm
.	O
</s>
<s>
Trilogy	O
was	O
also	O
ported	O
to	O
the	B-Operating_System
Wii	I-Operating_System
and	O
Wii	B-Device
U	I-Device
almost	O
a	O
year	O
later	O
.	O
</s>
<s>
On	O
April	O
28	O
,	O
2015	O
,	O
it	O
was	O
also	O
announced	O
that	O
the	O
game	O
was	O
also	O
released	O
on	O
Tizen	B-Application
smartphones	B-Application
by	O
running	O
with	O
OpenMobile	O
's	O
Application	O
Compatibility	O
Layer	O
(	O
ACL	O
)	O
emulation	O
technology	O
.	O
</s>
<s>
In	O
early	O
2019	O
,	O
several	O
games	O
in	O
the	O
franchise	O
,	O
including	O
the	O
original	O
title	O
,	O
were	O
unexplainably	O
removed	O
from	O
the	O
App	B-Application
Store	I-Application
and	O
Google	B-Application
Play	I-Application
.	O
</s>
<s>
On	O
March	O
31	O
,	O
2022	O
,	O
Rovio	O
released	O
a	O
new	O
version	O
of	O
the	O
original	O
game	O
titled	O
Rovio	O
Classics	O
:	O
Angry	B-Application
Birds	I-Application
marketed	O
to	O
its	O
older	O
fanbase	O
.	O
</s>
<s>
It	O
is	O
a	O
remake	O
of	O
the	O
game	O
's	O
state	O
in	O
2012	O
,	O
replacing	O
its	O
proprietary	O
engine	O
with	O
Unity	B-Application
for	O
compatibility	O
with	O
newer	O
and	O
future	O
devices	O
.	O
</s>
<s>
In	O
February	O
2023	O
,	O
Rovio	O
announced	O
that	O
Rovio	O
Classics	O
:	O
Angry	B-Application
Birds	I-Application
would	O
be	O
unlisted	O
from	O
the	O
Google	B-Application
Play	I-Application
store	I-Application
and	O
renamed	O
to	O
Red	O
’s	O
First	O
Flight	O
on	O
the	O
App	B-Application
Store	I-Application
.	O
</s>
<s>
In	O
reviews	O
,	O
Angry	B-Application
Birds	I-Application
has	O
been	O
praised	O
by	O
critics	O
.	O
</s>
<s>
Chris	O
Holt	O
of	O
Macworld	O
called	O
the	O
game	O
"	O
an	O
addictive	O
,	O
clever	O
,	O
and	O
challenging	O
puzzler	O
"	O
,	O
and	O
Pocket	O
Gamer	O
's	O
Keith	O
Andrew	O
said	O
Angry	B-Application
Birds	I-Application
is	O
"	O
a	O
nugget	O
of	O
puzzling	O
purity	O
dished	O
out	O
with	O
relish	O
aplenty	O
"	O
.	O
</s>
<s>
Reviews	O
for	O
the	O
first	O
versions	O
of	O
the	O
game	O
that	O
did	O
not	O
use	O
a	O
touch-screen	B-Device
,	O
the	O
PlayStation	O
3/PSP	O
version	O
and	O
the	O
Windows	B-Application
version	O
,	O
have	O
also	O
been	O
positive	O
,	O
but	O
with	O
some	O
disagreement	O
over	O
the	O
different	O
interfaces	O
.	O
</s>
<s>
Will	O
Greenwald	O
of	O
PC	O
Magazine	O
,	O
in	O
his	O
review	O
of	O
the	O
PlayStation	O
Network	O
version	O
,	O
said	O
that	O
the	O
control	O
scheme	O
on	O
these	O
platforms	O
is	O
good	O
,	O
"	O
but	O
they	O
're	O
not	O
nearly	O
as	O
satisfying	O
as	O
the	O
touch-screen	B-Device
controls	O
found	O
on	O
smartphone	B-Application
versions	O
"	O
,	O
and	O
that	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
version	O
appeared	O
"	O
blocky	O
and	O
unpleasant	O
,	O
like	O
a	O
smartphone	B-Application
screen	O
blown	O
up	O
to	O
HDTV	O
size	O
"	O
.	O
</s>
<s>
Conversely	O
,	O
Greg	O
Miller	O
of	O
IGN	O
preferred	O
the	O
analog	O
control	O
setup	O
of	O
the	O
PSP	B-Operating_System
version	O
,	O
saying	O
it	O
"	O
offered	O
me	O
tiny	O
variances	O
in	O
control	O
that	O
I	O
do	O
n't	O
feel	O
like	O
I	O
get	O
with	O
my	O
fat	O
finger	O
on	O
a	O
screen	O
"	O
.	O
</s>
<s>
While	O
giving	O
the	O
game	O
a	O
positive	O
review	O
,	O
Miller	O
concluded	O
,	O
"	O
There	O
's	O
no	O
denying	O
that	O
Angry	B-Application
Birds	I-Application
is	O
fun	O
,	O
but	O
it	O
could	O
use	O
polish	O
–	O
such	O
as	O
sharper	O
visuals	O
,	O
a	O
better	O
price	O
and	O
smoother	O
action.	O
"	O
</s>
<s>
Damien	O
McFerrin	O
of	O
British	O
website	O
Electric	O
Pig	B-Language
reviewed	O
the	O
PC	O
version	O
,	O
saying	O
"	O
the	O
mouse-driven	O
control	O
method	O
showcases	O
many	O
distinct	O
advantages	O
over	O
its	O
finger-focused	O
counterpart	O
"	O
.	O
</s>
<s>
Angry	B-Application
Birds	I-Application
has	O
also	O
been	O
described	O
critically	O
as	O
impossible	O
to	O
understand	O
the	O
playing	O
rules	O
criteria	O
by	O
game	O
critic	O
Chris	O
Schiller	O
of	O
Eurogamer.net,	O
which	O
has	O
'	O
a	O
contemptuous	O
attitude	O
towards	O
its	O
players	O
,	O
keeping	O
them	O
just	O
frustrated	O
enough	O
not	O
to	O
switch	O
off	O
and	O
play	O
something	O
else	O
instead.	O
'	O
</s>
<s>
Angry	B-Application
Birds	I-Application
became	O
the	O
top-selling	O
paid	O
application	O
on	O
Apple	O
's	O
UK	O
App	B-Application
Store	I-Application
in	O
February	O
2010	O
,	O
and	O
reached	O
the	O
top	O
spot	O
on	O
the	O
US	O
App	B-Application
Store	I-Application
a	O
few	O
weeks	O
later	O
,	O
where	O
it	O
remained	O
until	O
October	O
2010	O
.	O
</s>
<s>
Since	O
release	O
,	O
the	O
free	O
,	O
limited	O
version	O
of	O
Angry	B-Application
Birds	I-Application
has	O
been	O
downloaded	O
more	O
than	O
11	O
million	O
times	O
for	O
Apple	O
's	O
iOS	B-Application
,	O
and	O
the	O
full-featured	O
paid	O
version	O
has	O
been	O
downloaded	O
nearly	O
7	O
million	O
times	O
as	O
of	O
September	O
2010	O
.	O
</s>
<s>
The	O
Android	B-Application
version	O
of	O
the	O
game	O
was	O
downloaded	O
more	O
than	O
1	O
million	O
times	O
within	O
the	O
first	O
24	O
hours	O
of	O
release	O
,	O
even	O
though	O
the	O
site	O
crashed	O
at	O
one	O
point	O
due	O
to	O
the	O
load	O
,	O
and	O
over	O
2	O
million	O
downloads	O
in	O
its	O
first	O
weekend	O
.	O
</s>
<s>
Rovio	O
receives	O
approximately	O
US$1million	O
per	O
month	O
in	O
revenue	O
from	O
the	O
advertising	O
that	O
appears	O
in	O
the	O
free	O
Android	B-Application
version	O
.	O
</s>
<s>
In	O
November	O
2010	O
,	O
Digital	O
Trends	O
stated	O
that	O
"	O
with	O
36	O
million	O
downloads	O
,	O
Angry	B-Application
Birds	I-Application
is	O
one	O
of	O
the	O
most	O
mainstream	O
games	O
out	O
right	O
now	O
"	O
.	O
</s>
<s>
The	O
Christian	O
Science	O
Monitor	O
has	O
remarked	O
,	O
"	O
Angry	B-Application
Birds	I-Application
has	O
been	O
one	O
of	O
the	O
great	O
runaway	O
hits	O
of	O
2010	O
"	O
.	O
</s>
<s>
In	O
December	O
2010	O
,	O
in	O
honor	O
of	O
the	O
one-year	O
anniversary	O
of	O
the	O
release	O
of	O
Angry	B-Application
Birds	I-Application
,	O
Rovio	O
Mobile	O
announced	O
that	O
the	O
game	O
had	O
been	O
downloaded	O
50	O
million	O
times	O
,	O
with	O
more	O
than	O
12million	O
on	O
iOS	B-Application
devices	O
and	O
10million	O
on	O
Android	B-Application
.	O
</s>
<s>
By	O
January	O
2014	O
,	O
the	O
Angry	B-Application
Birds	I-Application
series	O
had	O
reached	O
2	O
billion	O
downloads	O
,	O
including	O
Angry	B-Application
Birds	I-Application
,	O
Angry	B-Application
Birds	I-Application
Seasons	I-Application
,	O
Angry	B-Application
Birds	I-Application
Rio	I-Application
,	O
Angry	B-Application
Birds	I-Application
Space	I-Application
,	O
Angry	B-Application
Birds	I-Application
Star	I-Application
Wars	I-Application
I	I-Application
and	O
II	B-Application
,	O
and	O
Angry	B-Application
Birds	I-Application
Go	I-Application
!	I-Application
</s>
<s>
On	O
Christmas	O
Day	O
2011	O
alone	O
,	O
6.5	O
million	O
copies	O
of	O
the	O
various	O
Angry	B-Application
Birds	I-Application
games	O
were	O
downloaded	O
across	O
all	O
supported	O
platforms	O
.	O
</s>
<s>
In	O
the	O
history	O
of	O
the	O
Apple	B-Application
App	I-Application
Store	I-Application
,	O
Angry	B-Application
Birds	I-Application
holds	O
the	O
record	O
for	O
most	O
days	O
at	O
the	O
top	O
of	O
the	O
Paid	O
Apps	O
chart	O
,	O
having	O
spent	O
a	O
total	O
of	O
275	O
days	O
at	O
the	O
No.1	O
position	O
;	O
Angry	B-Application
Birds	I-Application
Rio	I-Application
has	O
been	O
No.1	O
for	O
a	O
total	O
of	O
23	O
days	O
,	O
ranking	O
ninth	O
on	O
the	O
list	O
.	O
</s>
<s>
In	O
Apple	O
's	O
"	O
iTunes	B-Operating_System
Rewind	O
"	O
list	O
of	O
the	O
most	O
popular	O
iTunes	B-Operating_System
Store	O
media	O
for	O
2011	O
,	O
Angry	B-Application
Birds	I-Application
was	O
the	O
top-selling	O
paid	O
iPhone/iPod	O
app	O
on	O
the	O
App	B-Application
Store	I-Application
and	O
its	O
free	O
version	O
was	O
the	O
fourth-most	O
downloaded	O
.	O
</s>
<s>
The	O
game	O
's	O
two	O
special-edition	O
versions	O
,	O
Angry	B-Application
Birds	I-Application
Seasons	I-Application
and	O
Angry	B-Application
Birds	I-Application
Rio	I-Application
,	O
were	O
also	O
ranked	O
in	O
the	O
top	O
10	O
for	O
paid	O
iPhone/iPod	O
apps	O
,	O
while	O
its	O
iPad-exclusive	O
Angry	B-Application
Birds	I-Application
HD	I-Application
versions	O
were	O
the	O
top-selling	O
and	O
top-downloaded	O
iPad	B-Application
apps	I-Application
for	O
the	O
year	O
.	O
</s>
<s>
These	O
were	O
called	O
Angry	B-Application
Birds	I-Application
:	O
Knock	O
on	O
Wood	O
,	O
Angry	B-Application
Birds	I-Application
:	O
On	O
Thin	O
Ice	O
,	O
and	O
Angry	B-Application
Birds	I-Application
:	O
Mega	O
Smash	O
.	O
</s>
<s>
In	O
February	O
2010	O
,	O
Angry	B-Application
Birds	I-Application
was	O
a	O
nominee	O
for	O
the	O
"	O
Best	O
Casual	O
Game	O
"	O
award	O
at	O
the	O
6th	O
annual	O
International	O
Mobile	O
Gaming	O
Awards	O
in	O
Barcelona	O
,	O
Spain	O
.	O
</s>
<s>
In	O
September	O
2010	O
,	O
IGN	O
named	O
Angry	B-Application
Birds	I-Application
as	O
the	O
fourth	O
best	O
iPhone	O
game	O
of	O
all	O
time	O
.	O
</s>
<s>
In	O
April	O
2011	O
,	O
Angry	B-Application
Birds	I-Application
won	O
both	O
the	O
"	O
Best	O
Game	O
App	O
"	O
and	O
"	O
App	O
of	O
the	O
Year	O
"	O
at	O
the	O
UK	O
Appy	O
Awards	O
.	O
</s>
<s>
At	O
the	O
2011	O
Webby	O
Awards	O
,	O
Angry	B-Application
Birds	I-Application
was	O
awarded	O
"	O
Best	O
Game	O
for	O
Handheld	O
Devices	O
"	O
.	O
</s>
<s>
Awards	O
)	O
,	O
Angry	B-Application
Birds	I-Application
HD	I-Application
won	O
"	O
Casual	O
Game	O
of	O
the	O
Year	O
"	O
,	O
and	O
was	O
also	O
nominated	O
for	O
"	O
Outstanding	O
Innovation	O
in	O
Gaming	O
"	O
and	O
"	O
Game	O
of	O
the	O
Year	O
"	O
.	O
</s>
<s>
In	O
2015	O
,	O
a	O
sequel	O
,	O
Angry	B-Application
Birds	I-Application
2	I-Application
,	O
was	O
released	O
,	O
featuring	O
a	O
new	O
bird	O
named	O
Silver	O
.	O
</s>
