<s>
Sonic	B-Application
After	I-Application
the	I-Application
Sequel	I-Application
is	O
a	O
2013	O
platform	O
video	O
game	O
created	O
by	O
Brazilian	O
student	O
Felipe	O
Daneluz	O
(	O
LakeFeperd	B-Application
)	O
.	O
</s>
<s>
It	O
is	O
an	O
unofficial	O
game	O
based	O
on	O
the	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
series	I-Application
and	O
set	O
between	O
the	O
official	O
games	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
2	I-Application
and	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
3	I-Application
.	O
</s>
<s>
Daneluz	O
's	O
second	O
Sonic	B-Device
game	O
,	O
it	O
follows	O
Sonic	B-Device
Before	O
the	O
Sequel	O
,	O
which	O
is	O
set	O
between	O
the	O
original	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
and	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
2	I-Application
.	O
</s>
<s>
Like	O
its	O
predecessor	O
,	O
After	B-Application
the	I-Application
Sequel	I-Application
stars	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
and	O
his	O
sidekick	O
Tails	O
in	O
a	O
quest	O
to	O
retrieve	O
the	O
Chaos	O
Emeralds	O
from	O
Doctor	O
Eggman	O
.	O
</s>
<s>
After	B-Application
the	I-Application
Sequel	I-Application
was	O
inspired	O
by	O
Sonic	B-Application
Heroes	I-Application
and	O
other	O
games	O
both	O
inside	O
and	O
outside	O
the	O
Sonic	B-Application
series	I-Application
,	O
and	O
it	O
was	O
developed	O
with	O
Sonic	B-Device
Worlds	O
,	O
an	O
engine	O
based	O
in	O
Multimedia	B-Application
Fusion	I-Application
2	I-Application
that	O
reduces	O
the	O
amount	O
of	O
computer	B-General_Concept
programming	I-General_Concept
involved	O
in	O
game	O
creation	O
.	O
</s>
<s>
The	O
game	O
was	O
very	O
well	O
received	O
by	O
video	O
game	O
journalists	O
,	O
who	O
lauded	O
its	O
preservation	O
of	O
retro	O
Sonic	B-Device
gameplay	O
and	O
its	O
1990s-style	O
soundtrack	O
.	O
</s>
<s>
The	O
trilogy	O
of	O
Before	O
the	O
Sequel	O
,	O
After	B-Application
the	I-Application
Sequel	I-Application
,	O
and	O
their	O
successor	O
Sonic	B-Device
Chrono	O
Adventure	O
performed	O
unusually	O
well	O
for	O
fangames	B-Application
,	O
having	O
been	O
downloaded	O
120,000	O
times	O
by	O
March	O
2014	O
.	O
</s>
<s>
Sonic	B-Application
After	I-Application
the	I-Application
Sequel	I-Application
is	O
a	O
2D	O
platformer	O
in	O
the	O
style	O
of	O
the	O
Sonic	B-Device
games	O
for	O
the	O
Sega	B-Operating_System
Genesis	I-Operating_System
.	O
</s>
<s>
As	O
such	O
,	O
it	O
lets	O
the	O
player	O
control	O
either	O
the	O
blue	O
hedgehog	O
Sonic	B-Device
or	O
his	O
orange	O
fox	O
friend	O
Tails	O
.	O
</s>
<s>
Both	O
characters	O
can	O
move	O
left	O
and	O
right	O
with	O
the	O
arrow	O
keys	O
and	O
jump	O
with	O
the	O
"	O
Z	O
"	O
key	O
;	O
Tails	O
can	O
also	O
fly	O
to	O
reach	O
areas	O
Sonic	B-Device
cannot	O
.	O
</s>
<s>
These	O
zones	O
are	O
designed	O
for	O
fast-paced	O
gameplay	O
,	O
featuring	O
typical	O
Sonic	B-Device
obstacles	O
such	O
as	O
bottomless	O
pits	O
and	O
vertical	O
loops	O
.	O
</s>
<s>
The	O
zones	O
are	O
based	O
on	O
various	O
themes	O
,	O
including	O
haunted	B-Application
houses	I-Application
,	O
cities	O
,	O
magma	O
caverns	O
,	O
winter	O
theme	O
parks	O
,	O
and	O
sugar	O
processing	O
plants	O
.	O
</s>
<s>
Being	O
hit	O
while	O
carrying	O
no	O
rings	O
,	O
being	O
crushed	O
by	O
an	O
obstacle	O
,	O
or	O
falling	O
into	O
a	O
bottomless	O
pit	O
causes	O
the	O
player	O
to	O
lose	O
a	O
life	O
;	O
running	O
out	O
of	O
lives	O
results	O
in	O
a	O
game	B-Application
over	I-Application
screen	O
,	O
after	O
which	O
the	O
player	O
must	O
restart	O
the	O
zone	O
from	O
act	O
one	O
.	O
</s>
<s>
The	O
game	O
also	O
features	O
power-ups	O
throughout	O
its	O
zones	O
,	O
which	O
are	O
activated	O
with	O
the	O
"	O
X	O
"	O
key	O
:	O
these	O
include	O
typical	O
Sonic	B-Device
power-ups	O
such	O
as	O
shields	O
and	O
extra	O
lives	O
,	O
as	O
well	O
as	O
new	O
ones	O
.	O
</s>
<s>
The	O
"	O
Beam	O
"	O
power-up	O
for	O
Sonic	B-Device
and	O
the	O
"	O
Mirror	O
"	O
power-up	O
for	O
Tails	O
are	O
borrowed	O
from	O
and	O
credited	O
to	O
Nintendo	O
's	O
Kirby	B-Application
series	I-Application
.	O
</s>
<s>
At	O
the	O
end	O
of	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
2	I-Application
,	O
Sonic	B-Device
and	O
Tails	O
fly	O
over	O
the	O
ocean	O
in	O
Tails	O
 '	O
biplane	O
,	O
the	O
Tornado	B-Application
,	O
after	O
defeating	O
Doctor	O
Eggman	O
.	O
</s>
<s>
Beginning	O
from	O
this	O
point	O
,	O
After	B-Application
the	I-Application
Sequel	I-Application
depicts	O
Sonic	B-Device
and	O
Tails	O
noticing	O
a	O
forested	O
island	O
and	O
deciding	O
to	O
make	O
a	O
landing	O
and	O
explore	O
.	O
</s>
<s>
After	O
completing	O
the	O
first	O
zone	O
,	O
Sonic	B-Device
finds	O
a	O
robot	O
resembling	O
Tails	O
—	O
a	O
trap	O
sprung	O
by	O
Eggman	O
.	O
</s>
<s>
The	O
robot	O
ensnares	O
Sonic	B-Device
in	O
a	O
force	O
field	O
while	O
Eggman	O
steals	O
Sonic	B-Device
's	O
Chaos	O
Emeralds	O
.	O
</s>
<s>
Sonic	B-Device
escapes	O
and	O
sets	O
out	O
with	O
Tails	O
to	O
recover	O
the	O
Emeralds	O
.	O
</s>
<s>
They	O
follow	O
Eggman	O
to	O
a	O
forest	O
,	O
where	O
he	O
leads	O
a	O
massive	O
logging	B-Application
operation	O
.	O
</s>
<s>
Destroying	O
one	O
of	O
Eggman	O
's	O
robots	O
lets	O
Sonic	B-Device
see	O
its	O
internal	O
architecture	O
,	O
including	O
a	O
screen	O
that	O
shows	O
Eggman	O
's	O
plans	O
to	O
create	O
an	O
empire	O
and	O
drop	B-Application
a	I-Application
floating	I-Application
island	I-Application
into	I-Application
the	I-Application
sea	I-Application
.	O
</s>
<s>
In	O
Parhelion	O
Peak	O
,	O
the	O
game	O
's	O
snow	O
zone	O
,	O
Sonic	B-Device
and	O
Tails	O
notice	O
a	O
feather	O
float	O
down	O
from	O
the	O
sky	O
.	O
</s>
<s>
Sonic	B-Device
retrieves	O
the	O
Emeralds	O
and	O
uses	O
them	O
to	O
become	O
Super	O
Sonic	B-Device
.	O
</s>
<s>
After	O
its	O
defeat	O
,	O
Sonic	B-Device
and	O
Tails	O
fly	O
aboard	O
the	O
Tornado	B-Application
once	O
more	O
—	O
the	O
segue	O
into	O
the	O
events	O
of	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
3	I-Application
.	O
</s>
<s>
After	B-Application
the	I-Application
Sequel	I-Application
was	O
created	O
by	O
Felipe	O
Daneluz	O
(	O
known	O
on	O
the	O
Internet	O
as	O
"	O
LakeFeperd	B-Application
"	O
)	O
,	O
a	O
student	O
from	O
São	O
Paulo	O
,	O
Brazil	O
.	O
</s>
<s>
Unlike	O
many	O
longtime	O
Sonic	B-Device
fans	O
,	O
Daneluz	O
remained	O
supportive	O
of	O
the	O
series	O
through	O
its	O
"	O
dark	O
age	O
"	O
in	O
the	O
mid	O
to	O
late	O
2000s	O
and	O
enjoyed	O
games	O
such	O
as	O
Sonic	B-Application
Riders	I-Application
.	O
</s>
<s>
Because	O
of	O
his	O
continued	O
enthusiasm	O
toward	O
later	O
Sonic	B-Device
games	O
,	O
Daneluz	O
decided	O
to	O
create	O
a	O
retro-styled	O
Sonic	B-Device
game	O
.	O
</s>
<s>
Not	O
being	O
well	O
versed	O
in	O
computer	B-General_Concept
programming	I-General_Concept
,	O
Daneluz	O
took	O
to	O
the	O
open-source	B-Application
,	O
visual	O
game	O
engine	O
Sonic	B-Device
Worlds	O
,	O
which	O
is	O
tailored	O
to	O
create	O
Sonic	B-Device
zones	O
within	O
the	O
program	O
Multimedia	B-Application
Fusion	I-Application
2	I-Application
.	O
</s>
<s>
Determined	O
to	O
make	O
his	O
game	O
stand	O
out	O
despite	O
his	O
limited	O
technical	O
proficiency	O
,	O
Daneluz	O
decided	O
to	O
set	O
his	O
first	O
game	O
in	O
the	O
time	O
between	O
Sonic	B-Application
the	I-Application
Hedgehog	I-Application
and	O
Sonic	B-Application
2	I-Application
,	O
calling	O
it	O
Sonic	B-Device
Before	O
the	O
Sequel	O
.	O
</s>
<s>
He	O
set	O
the	O
follow-up	O
,	O
entitled	O
Sonic	B-Application
After	I-Application
the	I-Application
Sequel	I-Application
,	O
between	O
Sonic	B-Application
2	I-Application
and	O
Sonic	B-Application
3	I-Application
,	O
and	O
a	O
third	O
installment	O
,	O
Sonic	B-Device
Chrono	O
Adventure	O
,	O
between	O
Sonic	B-Application
3	I-Application
and	O
Sonic	B-Application
CD	I-Application
.	O
</s>
<s>
After	B-Application
the	I-Application
Sequels	I-Application
zones	O
were	O
inspired	O
largely	O
by	O
those	O
of	O
Sonic	B-Application
Heroes	I-Application
.	O
</s>
<s>
One	O
level	O
called	O
RedHot	O
Ride	O
Zone	O
,	O
however	O
,	O
was	O
based	O
mainly	O
on	O
a	O
level	O
of	O
the	O
same	O
name	O
in	O
Donkey	B-Application
Kong	I-Application
Country	I-Application
2	I-Application
:	I-Application
Diddy	I-Application
's	I-Application
Kong	I-Application
Quest	I-Application
.	O
</s>
<s>
Ideas	O
for	O
other	O
zones	O
came	O
from	O
Sonic	B-Application
Riders	I-Application
and	O
a	O
Sonic-style	O
song	O
called	O
"	O
Combat	O
Night	O
Zone	O
"	O
by	O
electronic	O
artist	O
MaxieDaMan	O
.	O
</s>
<s>
Daneluz	O
imagined	O
Sonic	B-Device
being	O
high	O
on	O
sugar	O
in	O
the	O
Sugar	O
Splash	O
Zone	O
.	O
</s>
<s>
Daneluz	O
began	O
creating	O
each	O
level	O
by	O
sketching	O
out	O
ideas	O
on	O
paper	O
,	O
then	O
transferring	O
them	O
to	O
Adobe	B-Operating_System
Photoshop	I-Operating_System
before	O
working	O
on	O
the	O
enemies	O
and	O
level	O
design	O
.	O
</s>
<s>
Unlike	O
the	O
publishers	O
of	O
many	O
other	O
games	O
on	O
which	O
fangames	B-Application
have	O
been	O
based	O
,	O
particularly	O
Nintendo	O
,	O
Sonic	B-Application
series	I-Application
publisher	O
Sega	O
has	O
not	O
sent	O
a	O
cease	O
and	O
desist	O
order	O
or	O
other	O
indication	O
of	O
disapproval	O
to	O
Daneluz	O
.	O
</s>
<s>
Funk	O
Fiction	O
has	O
claimed	O
that	O
the	O
music	O
spans	O
more	O
than	O
twenty	O
genres	O
and	O
was	O
influenced	O
by	O
rock	O
,	O
jazz	B-Device
,	O
disco	B-Operating_System
,	O
and	O
trip	O
hop	O
and	O
the	O
soundtracks	O
of	O
game	O
franchises	O
like	O
Sonic	B-Device
,	O
Donkey	B-Application
Kong	I-Application
,	O
and	O
Kirby	B-Application
.	O
</s>
<s>
Due	O
to	O
the	O
levels	O
in	O
After	B-Application
the	I-Application
Sequel	I-Application
generally	O
taking	O
longer	O
to	O
complete	O
than	O
those	O
in	O
Before	O
the	O
Sequel	O
,	O
the	O
music	O
tracks	O
are	O
longer	O
,	O
estimated	O
by	O
Falk	O
as	O
ranging	O
from	O
one	O
minute	O
and	O
45	O
seconds	O
to	O
three	O
minutes	O
.	O
</s>
<s>
In	O
August	O
2017	O
,	O
Daneluz	O
re-released	O
the	O
game	O
as	O
Sonic	B-Application
After	I-Application
the	I-Application
Sequel	I-Application
DX	O
.	O
</s>
<s>
This	O
version	O
features	O
improved	O
physics	O
,	O
the	O
addition	O
of	O
the	O
drop	O
dash	O
from	O
Sonic	B-Application
Mania	I-Application
,	O
and	O
a	O
new	O
final	O
boss	O
.	O
</s>
<s>
Later	O
in	O
2019	O
,	O
an	O
unofficial	O
remake	O
called	O
Sonic	B-Application
After	I-Application
the	I-Application
Sequel	I-Application
Omega	O
was	O
released	O
by	O
Compound	O
Games	O
.	O
</s>
<s>
This	O
version	O
also	O
introduces	O
more	O
improved	O
physics	O
and	O
performance	O
fixes	O
,	O
and	O
retains	O
the	O
drop	O
dash	O
from	O
Sonic	B-Application
After	I-Application
the	I-Application
Sequel	I-Application
DX	O
.	O
</s>
<s>
After	B-Application
the	I-Application
Sequel	I-Application
has	O
received	O
positive	O
coverage	O
for	O
its	O
revitalization	O
of	O
retro	O
Sonic	B-Device
gameplay	O
.	O
</s>
<s>
Tony	O
Ponce	O
of	O
Destructoid	O
summarized	O
it	O
as	O
"	O
quite	O
the	O
fun	O
little	O
gem	O
that	O
keeps	O
the	O
Genesis-era	O
Sonic	B-Device
spirit	O
alive	O
"	O
.	O
</s>
<s>
He	O
contrasted	O
the	O
retro	O
,	O
fan-made	O
After	B-Application
the	I-Application
Sequel	I-Application
with	O
Sega	O
's	O
efforts	O
to	O
create	O
high-quality	O
3D	O
titles	O
,	O
lamenting	O
that	O
,	O
fifteen	O
years	O
after	O
the	O
release	O
of	O
Sonic	B-Application
Adventure	I-Application
,	O
Sega	O
was	O
"	O
only	O
now	O
starting	O
to	O
get	O
the	O
hang	O
of	O
the	O
third	O
dimension.	O
"	O
</s>
<s>
The	O
UK	O
gaming	O
staff	O
for	O
Red	O
Bull	O
's	O
website	O
stated	O
that	O
,	O
despite	O
Sega	O
's	O
continual	O
releases	O
of	O
Sonic	B-Device
games	O
,	O
"	O
few	O
have	O
quite	O
recaptured	O
the	O
thrill	O
of	O
blazing	O
through	O
a	O
2D	O
labyrinth	O
at	O
lightspeed	O
in	O
the	O
way	O
that	O
fan	O
made	O
Sonic	B-Application
After	I-Application
The	I-Application
Sequel	I-Application
has.	O
"	O
</s>
<s>
Ponce	O
wrote	O
an	O
article	O
dedicated	O
to	O
the	O
game	O
's	O
music	O
two	O
days	O
later	O
,	O
clarifying	O
that	O
it	O
equals	O
or	O
surpasses	O
the	O
quality	O
of	O
any	O
other	O
Sonic	B-Device
game	O
's	O
soundtrack	O
.	O
</s>
<s>
As	O
of	O
March	O
2014	O
,	O
the	O
trilogy	O
had	O
been	O
downloaded	O
120,000	O
times	O
—	O
an	O
unusually	O
high	O
number	O
for	O
fangames	B-Application
—	O
as	O
compared	O
to	O
the	O
640,000	O
copies	O
of	O
the	O
official	O
game	O
Sonic	B-Application
Lost	I-Application
World	I-Application
(	O
also	O
released	O
in	O
2013	O
)	O
sold	O
on	O
the	O
Wii	B-Device
U	I-Device
by	O
the	O
same	O
time	O
.	O
</s>
