<s>
Kirby	B-Application
Mass	I-Application
Attack	I-Application
is	O
a	O
platform	O
video	O
game	O
developed	O
by	O
HAL	O
Laboratory	O
and	O
published	O
by	O
Nintendo	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
Part	O
of	O
the	O
Kirby	B-Application
series	I-Application
,	O
it	O
was	O
released	O
worldwide	O
in	O
late	O
2011	O
,	O
and	O
is	O
the	O
fourth	O
and	O
last	O
Kirby	B-Application
game	O
to	O
be	O
released	O
for	O
the	O
DS	B-Device
.	O
</s>
<s>
The	O
game	O
was	O
later	O
released	O
for	O
the	O
Wii	B-Device
U	I-Device
's	O
Virtual	B-Application
Console	I-Application
in	O
PAL	O
regions	O
in	O
December	O
2015	O
,	O
in	O
Japan	O
on	O
February	O
29	O
,	O
2016	O
,	O
and	O
in	O
North	O
America	O
on	O
July	O
28	O
,	O
2016	O
.	O
</s>
<s>
Kirby	B-Application
Mass	I-Application
Attack	I-Application
is	O
a	O
platform	O
game	O
with	O
elements	O
similar	O
to	O
that	O
of	O
the	O
Lemmings	B-Application
series	O
.	O
</s>
<s>
Like	O
Kirby	B-Application
:	I-Application
Canvas	I-Application
Curse	I-Application
,	O
the	O
player	O
does	O
not	O
directly	O
play	O
the	O
game	O
with	O
a	O
directional	B-Device
pad	I-Device
,	O
face	O
buttons	O
,	O
or	O
shoulder	O
buttons	O
.	O
</s>
<s>
Instead	O
,	O
the	O
player	O
only	O
uses	O
the	O
stylus	O
and	O
touch	O
screen	O
on	O
the	O
DS	B-Device
to	O
play	O
the	O
game	O
.	O
</s>
<s>
By	O
collecting	O
pieces	O
of	O
fruit	O
throughout	O
the	O
level	O
,	O
the	O
player	O
can	O
gain	O
up	O
to	O
ten	O
controllable	O
Kirbys	O
,	O
which	O
allow	O
players	O
to	O
tackle	O
enemies	O
and	O
obstacles	O
more	O
easily	O
than	O
with	O
one	O
Kirby	B-Application
.	O
</s>
<s>
If	O
a	O
Kirby	B-Application
is	O
hit	O
by	O
an	O
enemy	O
or	O
obstacle	O
,	O
it	O
will	O
turn	O
blue	O
until	O
the	O
end	O
of	O
the	O
level	O
,	O
or	O
until	O
the	O
player	O
finds	O
a	O
special	O
gate	O
which	O
restores	O
their	O
health	O
.	O
</s>
<s>
If	O
a	O
blue	O
Kirby	B-Application
is	O
hit	O
,	O
he	O
will	O
turn	O
grey	O
and	O
float	O
away	O
unless	O
the	O
player	O
can	O
drag	O
him	O
down	O
and	O
turn	O
him	O
blue	O
again	O
,	O
with	O
the	O
game	O
ending	O
if	O
the	O
player	O
runs	O
out	O
of	O
Kirbys	O
or	O
fails	O
a	O
certain	O
level	O
objective	O
.	O
</s>
<s>
Kirby	B-Application
travelled	O
to	O
the	O
Popopo	O
Islands	O
,	O
an	O
archipelago	O
in	O
the	O
south	O
of	O
Popstar	O
,	O
to	O
explore	O
.	O
</s>
<s>
After	O
Kirby	B-Application
fell	O
asleep	O
in	O
a	O
field	O
,	O
Necrodeus	O
,	O
the	O
evil	O
leader	O
of	O
the	O
Skull	O
Gang	O
,	O
appeared	O
from	O
the	O
sky	O
.	O
</s>
<s>
Using	O
his	O
magic	O
staff	O
,	O
Necrodeus	O
struck	O
Kirby	B-Application
and	O
split	O
him	O
in	O
ten	O
tiny	O
individual	O
Kirbys	O
,	O
each	O
with	O
only	O
a	O
fraction	O
of	O
the	O
original	O
Kirby	B-Application
's	O
power	O
.	O
</s>
<s>
After	O
promptly	O
defeating	O
all	O
but	O
one	O
of	O
the	O
ten	O
Kirbys	O
,	O
the	O
last	O
Kirby	B-Application
notices	O
a	O
small	O
star	O
,	O
which	O
is	O
his	O
own	O
heroic	O
heart	O
.	O
</s>
<s>
Under	O
the	O
direction	O
of	O
Mari	O
Shirakawa	O
and	O
produced	O
by	O
Masanobu	O
Yamamoto	O
,	O
Kirby	B-Application
Mass	I-Application
Attack	I-Application
was	O
developed	O
out	O
of	O
a	O
desire	O
from	O
HAL	O
Laboratories	O
to	O
integrate	O
new	O
,	O
unique	O
gameplay	O
styles	O
into	O
the	O
Kirby	B-Application
series	I-Application
;	O
thus	O
,	O
focus	O
was	O
shifted	O
away	O
from	O
Copy	O
Abilities	O
,	O
which	O
were	O
typically	O
a	O
core	O
aspect	O
of	O
Kirby	B-Application
games	O
,	O
and	O
focused	O
more	O
on	O
the	O
idea	O
of	O
group	O
management	O
.	O
</s>
<s>
While	O
the	O
team	O
deeply	O
considered	O
including	O
Copy	O
Abilities	O
as	O
a	O
mechanic	O
,	O
the	O
development	O
team	O
decided	O
to	O
exclude	O
it	O
,	O
after	O
several	O
talks	O
with	O
Nintendo	O
and	O
Senior	O
Producer	O
Kensuke	O
Tanabe	O
,	O
in	O
order	O
to	O
maintain	O
focus	O
on	O
the	O
game	O
's	O
new	O
gameplay	O
ideas	O
,	O
as	O
well	O
as	O
avoid	O
overcomplicating	O
the	O
use	O
of	O
multiple	O
Kirby	B-Application
copies	O
at	O
once	O
.	O
</s>
<s>
Because	O
of	O
the	O
nature	O
of	O
controlling	O
several	O
Kirby	B-Application
's	O
at	O
once	O
,	O
level	O
design	O
was	O
kept	O
simple	O
in	O
order	O
to	O
require	O
less	O
"	O
athleticism	O
"	O
that	O
is	O
generally	O
utilized	O
in	O
most	O
platforming	O
stages	O
.	O
</s>
<s>
Despite	O
being	O
released	O
well	O
after	O
the	O
reveal	O
of	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
,	O
Kirby	B-Application
Mass	I-Application
Attack	I-Application
was	O
still	O
developed	O
on	O
the	O
DS	B-Device
rather	O
than	O
being	O
released	O
on	O
the	O
newer	O
console	O
.	O
</s>
<s>
According	O
to	O
Shirikawa	O
,	O
this	O
was	O
partially	O
because	O
the	O
game	O
would	O
not	O
have	O
taken	O
extensive	O
advantage	O
of	O
the	O
system	O
's	O
stereoscopic	B-Algorithm
3D	I-Algorithm
capabilities	O
,	O
meaning	O
that	O
making	O
it	O
for	O
the	O
3DS	B-Operating_System
would	O
have	O
been	O
pointless	O
.	O
</s>
<s>
Kirby	B-Application
Mass	I-Application
Attack	I-Application
was	O
announced	O
and	O
shown	O
at	O
E3	O
2011	O
.	O
</s>
<s>
It	O
was	O
published	O
in	O
Japan	O
from	O
2016	O
by	O
Asahi	O
Production	O
,	O
serialized	O
in	O
the	O
online	O
social	O
networking	O
service	O
based	O
Facebook	B-Application
.	I-Application
</s>
<s>
Kirby	B-Application
ended	O
2016	O
.	O
</s>
<s>
Three	O
special	O
volumes	O
of	O
the	O
manga	O
came	O
out	O
in	O
Japan	O
called	O
"	O
Kirby	B-Application
MASTER	O
"	O
( カービィマスター	O
,	O
Kābī	O
Masutā	O
)	O
,	O
which	O
had	O
all	O
the	O
pages	O
for	O
each	O
manga	O
in	O
color	O
and	O
has	O
brand-new	O
stories	O
.	O
</s>
<s>
Kirby	B-Application
Mass	I-Application
Attack	I-Application
received	O
"	O
generally	O
favorable	O
"	O
reviews	O
,	O
according	O
to	O
Review	B-Application
aggregator	I-Application
Metacritic	O
.	O
</s>
<s>
Destructoid	O
said	O
,	O
"	O
Cleverly	O
designed	O
,	O
overwhelmingly	O
cute	O
,	O
and	O
devoted	O
to	O
fun	O
,	O
Kirby	B-Application
Mass	I-Application
Attack	I-Application
is	O
a	O
game	O
that	O
should	O
become	O
part	O
of	O
your	O
handheld	O
library	O
without	O
question.	O
"	O
</s>
