<s>
Crash	B-Application
Bandicoot	I-Application
2	I-Application
:	I-Application
Cortex	I-Application
Strikes	I-Application
Back	I-Application
is	O
a	O
1997	O
platform	O
video	O
game	O
developed	O
by	O
Naughty	O
Dog	O
and	O
published	O
by	O
Sony	O
Computer	O
Entertainment	O
for	O
the	O
PlayStation	B-Device
.	O
</s>
<s>
It	O
is	O
a	O
sequel	O
to	O
Crash	B-Application
Bandicoot	I-Application
(	O
1996	O
)	O
,	O
and	O
is	O
part	O
of	O
the	O
Crash	B-Application
Bandicoot	I-Application
series	O
.	O
</s>
<s>
Taking	O
place	O
on	O
a	O
fictional	O
group	O
of	O
islands	O
near	O
Australia	O
,	O
Crash	B-Application
Bandicoot	I-Application
2	I-Application
follows	O
the	O
adventures	O
of	O
the	O
anthropomorphic	O
bandicoot	O
named	O
Crash	O
.	O
</s>
<s>
Crash	O
's	O
sister	O
Coco	O
and	O
Cortex	O
's	O
former	O
assistant	O
Doctor	O
Nitrus	O
Brio	O
try	O
to	O
warn	O
him	O
about	O
Cortex	O
,	O
with	O
the	O
latter	O
urging	O
Crash	O
to	O
gather	O
gems	B-Application
instead	O
of	O
crystals	O
.	O
</s>
<s>
Cortex	B-Application
Strikes	I-Application
Back	I-Application
received	O
positive	O
reviews	O
from	O
critics	O
and	O
is	O
widely	O
considered	O
to	O
be	O
superior	O
to	O
its	O
predecessor	O
.	O
</s>
<s>
The	O
game	O
went	O
on	O
to	O
become	O
one	O
of	O
the	O
best-selling	B-Device
PlayStation	I-Device
video	I-Device
games	I-Device
of	I-Device
all	I-Device
time	I-Device
and	O
replaced	O
its	O
predecessor	O
as	O
the	O
highest-selling	O
Western	O
title	O
in	O
Japan	O
at	O
the	O
time	O
,	O
selling	O
more	O
than	O
800,000	O
copies	O
in	O
the	O
country	O
by	O
April	O
1998	O
.	O
</s>
<s>
A	O
remastered	O
version	O
was	O
included	O
in	O
the	O
Crash	B-Application
Bandicoot	I-Application
N	I-Application
.	I-Application
Sane	I-Application
Trilogy	I-Application
collection	O
,	O
released	O
on	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
in	O
June	O
2017	O
,	O
and	O
ported	O
to	O
other	O
platforms	O
in	O
June	O
2018	O
.	O
</s>
<s>
Cortex	B-Application
Strikes	I-Application
Back	I-Application
is	O
a	O
platform	O
game	O
in	O
which	O
the	O
player	O
character	O
is	O
the	O
titular	O
Crash	B-Application
Bandicoot	I-Application
.	O
</s>
<s>
Boxes	O
play	O
a	O
prominent	O
role	O
in	O
Cortex	B-Application
Strikes	I-Application
Back	I-Application
and	O
can	O
be	O
broken	O
with	O
all	O
of	O
Crash	O
's	O
techniques	O
.	O
</s>
<s>
The	O
player	O
will	O
earn	O
a	O
gem	B-Application
if	O
they	O
manage	O
to	O
destroy	O
all	O
the	O
boxes	O
,	O
including	O
Nitro	O
Boxes	O
and	O
boxes	O
on	O
alternate	O
routes	O
,	O
in	O
a	O
level	O
.	O
</s>
<s>
Certain	O
gems	B-Application
can	O
be	O
acquired	O
by	O
other	O
means	O
,	O
like	O
reaching	O
the	O
end	O
of	O
a	O
level	O
within	O
a	O
certain	O
time	O
parameter	O
,	O
or	O
completing	O
a	O
level	O
without	O
breaking	O
any	O
boxes	O
.	O
</s>
<s>
Crash	B-Application
Bandicoot	I-Application
sends	O
Doctor	O
Neo	O
Cortex	O
falling	O
from	O
his	O
airship	O
into	O
a	O
cavern	O
filled	O
with	O
glowing	O
crystals	O
.	O
</s>
<s>
Unbeknownst	O
to	O
Cortex	O
,	O
his	O
former	O
assistant	O
Dr.	O
Nitrus	O
Brio	O
also	O
appears	O
in	O
hologram	O
form	O
and	O
tells	O
Crash	O
that	O
,	O
scattered	O
across	O
the	O
world	O
,	O
there	O
are	O
several	O
clear	O
and	O
colored	O
gems	B-Application
that	O
serve	O
as	O
an	O
alternative	O
form	O
of	O
energy	O
that	O
Brio	O
is	O
planning	O
to	O
use	O
against	O
Cortex	O
.	O
</s>
<s>
However	O
,	O
with	O
Dr.	O
Brio	O
's	O
aid	O
,	O
Crash	O
uses	O
all	O
the	O
gems	B-Application
he	O
gathered	O
throughout	O
the	O
Warp	O
Room	O
and	O
learns	O
that	O
Brio	O
built	O
a	O
laser	O
beam	O
machine	O
powered	O
by	O
the	O
gem	B-Application
's	O
energy	O
.	O
</s>
<s>
Production	O
of	O
Cortex	B-Application
Strikes	I-Application
Back	I-Application
began	O
in	O
October	O
1996	O
.	O
</s>
<s>
For	O
the	O
game	O
,	O
Crash	B-Application
Bandicoot	I-Application
co-creator	O
Andy	O
Gavin	O
programmed	O
a	O
new	O
engine	O
named	O
"	O
Game-Oriented	O
Object	O
LISP	B-Language
2	O
"	O
(	O
GOOL	O
2	O
)	O
;	O
being	O
three	O
times	O
faster	O
than	O
the	O
previous	O
game	O
's	O
engine	O
,	O
it	O
could	O
handle	O
ten	O
times	O
the	O
animation	O
frames	O
and	O
twice	O
the	O
polygon	O
count	O
.	O
</s>
<s>
The	O
soundtrack	O
of	O
Cortex	B-Application
Strikes	I-Application
Back	I-Application
was	O
written	O
by	O
Josh	O
Mancell	O
from	O
Mutato	O
Muzika	O
,	O
while	O
the	O
sound	O
effects	O
were	O
created	O
by	O
Universal	O
Sound	O
Studios	O
(	O
consisting	O
of	O
Mike	O
Gollom	O
,	O
Ron	O
Horwitz	O
and	O
Kevin	O
Spears	O
)	O
.	O
</s>
<s>
Clancy	O
Brown	O
provided	O
the	O
voice	O
of	O
Doctor	O
Neo	O
Cortex	O
,	O
Vicki	O
Winters	O
voiced	O
Coco	O
Bandicoot	O
,	O
and	O
Brendan	O
O'Brien	O
voiced	O
Crash	B-Application
Bandicoot	I-Application
,	O
Doctor	O
N	O
.	O
Gin	O
,	O
and	O
Doctor	O
Nitrus	O
Brio	O
.	O
</s>
<s>
Around	O
that	O
time	O
,	O
Dan	O
Arey	O
,	O
the	O
lead	O
designer	O
of	O
Gex	B-Application
:	I-Application
Enter	I-Application
the	I-Application
Gecko	I-Application
,	O
joined	O
Naughty	O
Dog	O
and	O
streamlined	O
the	O
level	O
design	O
.	O
</s>
<s>
IGDA	O
considers	O
the	O
testing	O
process	O
for	O
Crash	B-Application
Bandicoot	I-Application
2	I-Application
the	O
moment	O
where	O
the	O
field	O
of	O
Games	O
User	O
Research	O
"	O
came	O
of	O
age	O
"	O
.	O
</s>
<s>
A	O
death	O
animation	O
in	O
which	O
Crash	O
is	O
squashed	O
into	O
a	O
stunned	O
head	O
and	O
feet	O
was	O
altered	O
for	O
the	O
Japanese	O
version	O
of	O
the	O
game	O
due	O
to	O
its	O
resemblance	O
to	O
the	O
severed	O
head	O
and	O
shoes	O
left	O
by	O
a	O
serial	O
killer	O
loose	O
in	O
Japan	O
at	O
the	O
time.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1	O
{{cite	O
web	O
|url	O
=	O
|title	O
=	O
Making	O
Crash	B-Application
Bandicoot	I-Application
-	O
part	O
5	O
|author	O
=	O
Andy	O
Gavin	O
|date	O
=	O
February	O
6	O
,	O
2011	O
|publisher	O
=	O
All	O
Things	O
Andy	O
Gavin	O
|	O
access-date	O
=	O
February	O
7	O
,	O
2011	O
|quote	O
=	O
Naughty	O
Dog	O
would	O
do	O
a	O
huge	O
amount	O
of	O
work	O
after	O
this	O
on	O
the	O
game	O
for	O
Japan	O
,	O
and	O
even	O
then	O
we	O
would	O
always	O
release	O
a	O
Japanese	O
specific	O
build	O
.	O
</s>
<s>
ReceptionCrash	O
Bandicoot	O
2	O
:	O
Cortex	B-Application
Strikes	I-Application
Back	I-Application
was	O
released	O
to	O
critical	O
acclaim	O
.	O
</s>
<s>
Major	O
Mike	O
of	O
GamePro	O
said	O
that	O
while	O
the	O
fundamental	O
gameplay	O
mechanics	O
were	O
the	O
same	O
as	O
the	O
first	O
title	O
,	O
"	O
its	O
graphical	O
enhancements	O
and	O
added	O
moves	O
catapult	O
it	O
to	O
the	O
top	O
of	O
the	O
PlayStation	B-Device
action/platform	O
heap.	O
"	O
</s>
<s>
Next	O
Generation	O
stated	O
that	O
"	O
Crash	B-Application
2	I-Application
is	O
a	O
tempting	O
gameplay	O
treat	O
,	O
one	O
that	O
frustrates	O
at	O
times	O
,	O
but	O
it	O
always	O
rewards	O
a	O
job	O
well	O
done	O
–	O
and	O
that	O
is	O
an	O
addictive	O
combination	O
for	O
any	O
serious	O
platform	O
gamer	O
.	O
</s>
<s>
GameSpot	O
's	O
Broady	O
described	O
them	O
as	O
"	O
in	O
a	O
league	O
of	O
their	O
own	O
among	O
PlayStation	B-Device
games	O
"	O
,	O
while	O
the	O
IGN	O
staff	O
praised	O
the	O
high-resolution	O
graphics	O
as	O
"	O
beautiful	O
"	O
.	O
</s>
<s>
Game	O
Revolution	O
's	O
Mark	O
Cooke	O
noted	O
the	O
absence	O
of	O
cutscenes	O
brought	O
about	O
by	O
the	O
entirety	O
of	O
the	O
game	O
being	O
"	O
rendered	O
on	O
the	O
fly	O
beautifully	O
"	O
and	O
that	O
the	O
game	O
could	O
"	O
really	O
set	O
some	O
new	O
standards	O
in	O
Playstation	B-Device
graphic	O
quality.	O
"	O
</s>
<s>
Smith	O
and	O
Rickards	O
both	O
said	O
that	O
while	O
the	O
control	O
works	O
well	O
with	O
the	O
analog	O
pad	O
,	O
it	O
is	O
somewhat	O
loose	O
with	O
the	O
digital	O
gamepad	O
,	O
which	O
was	O
still	O
the	O
standard	O
for	O
the	O
PlayStation	B-Device
.	O
</s>
<s>
The	O
IGN	O
staff	O
said	O
that	O
the	O
level	O
design	O
"	O
is	O
n't	O
as	O
varied	O
as	O
it	O
could	O
be	O
"	O
and	O
added	O
that	O
the	O
"	O
jungle	O
,	O
snow	O
and	O
water	O
"	O
environments	O
are	O
recycled	O
from	O
the	O
previous	O
game	O
and	O
reused	O
multiple	O
times	O
in	O
Cortex	B-Application
Strikes	I-Application
Back	I-Application
.	O
</s>
<s>
Cooke	O
observed	O
that	O
,	O
like	O
its	O
predecessor	O
,	O
the	O
game	O
did	O
not	O
add	O
anything	O
to	O
the	O
genre	O
and	O
summarized	O
that	O
"	O
the	O
first	O
Crash	O
was	O
dauntingly	O
similar	O
to	O
the	O
16-bit	O
platform	O
games	O
of	O
yester-yore	O
,	O
only	O
with	O
better	O
graphics	O
,	O
and	O
Crash	B-Application
2	I-Application
does	O
n't	O
deviate	O
much	O
from	O
this	O
formula	O
"	O
.	O
</s>
<s>
By	O
February	O
1999	O
,	O
4.08	O
million	O
copies	O
of	O
Crash	B-Application
Bandicoot	I-Application
had	O
been	O
shipped	O
to	O
retailers	O
worldwide	O
;	O
the	O
NPD	O
Group	O
reported	O
sell-through	O
of	O
1.49	O
million	O
copies	O
in	O
North	O
America	O
alone	O
.	O
</s>
<s>
By	O
December	O
2007	O
,	O
Cortex	B-Application
Strikes	I-Application
Back	I-Application
had	O
sold	O
3.78	O
million	O
units	O
in	O
the	O
United	O
States	O
and	O
1.3	O
million	O
in	O
Japan	O
.	O
</s>
<s>
This	O
makes	O
it	O
one	O
of	O
the	O
best-selling	B-Device
PlayStation	I-Device
video	I-Device
games	I-Device
of	I-Device
all	I-Device
time	I-Device
.	O
</s>
<s>
The	O
game	O
's	O
success	O
resulted	O
in	O
its	O
re-release	O
for	O
the	O
Sony	B-Device
Greatest	I-Device
Hits	I-Device
lineup	O
on	O
August	O
30	O
,	O
1998	O
,	O
and	O
for	O
the	O
Platinum	O
Range	O
in	O
1999	O
.	O
</s>
<s>
The	O
game	O
replaced	O
Crash	B-Application
Bandicoot	I-Application
as	O
the	O
highest-selling	O
non-Japanese	O
title	O
in	O
Japan	O
,	O
selling	O
over	O
800,000	O
copies	O
by	O
April	O
1998	O
.	O
</s>
<s>
Cortex	B-Application
Strikes	I-Application
Back	I-Application
was	O
initially	O
released	O
on	O
the	O
European	O
PlayStation	B-Device
Network	O
on	O
July	O
26	O
,	O
2007	O
,	O
but	O
was	O
withdrawn	O
on	O
August	O
7	O
,	O
2007	O
,	O
along	O
with	O
Spyro	B-Application
2	I-Application
:	I-Application
Gateway	I-Application
to	I-Application
Glimmer	I-Application
and	O
MediEvil''	O
,	O
as	O
a	O
precautionary	O
measure	O
when	O
the	O
latter	O
two	O
games	O
experienced	O
technical	O
problems	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
on	O
the	O
North	O
American	O
PlayStation	B-Device
Network	O
on	O
January	O
10	O
,	O
2008	O
,	O
and	O
re-released	O
on	O
the	O
European	O
PlayStation	B-Device
Network	O
on	O
February	O
2	O
,	O
2011	O
.	O
</s>
