<s>
,	O
also	O
called	O
Metal	B-Application
Slug	I-Application
3D	I-Application
( メタルスラッグ3D	O
)	O
to	O
distinguish	O
it	O
from	O
the	O
original	O
Metal	B-Application
Slug	I-Application
,	O
is	O
a	O
third-person	O
shooter	O
run	O
and	O
gun	O
video	O
game	O
for	O
the	O
PlayStation	B-Device
2	I-Device
.	O
</s>
<s>
None	O
of	O
the	O
original	O
Metal	B-Application
Slug	I-Application
team	O
were	O
involved	O
with	O
the	O
title	O
.	O
</s>
<s>
In	O
E3	O
of	O
2005	O
,	O
SNK	O
Playmore	O
revealed	O
the	O
game	O
to	O
be	O
called	O
"	O
Metal	B-Application
Slug	I-Application
:	I-Application
Evolution	I-Application
"	O
,	O
but	O
was	O
later	O
changed	O
to	O
just	O
"	O
Metal	B-Application
Slug	I-Application
"	O
.	O
</s>
<s>
The	O
game	O
takes	O
place	O
in	O
the	O
year	O
2032	O
,	O
four	O
years	O
after	O
the	O
first	O
Metal	B-Application
Slug	I-Application
game	O
and	O
before	O
Metal	B-Application
Slug	I-Application
7	I-Application
.	O
</s>
<s>
Metal	B-Application
Slug	I-Application
maintains	O
many	O
features	O
from	O
the	O
2D	O
entries	O
;	O
characters	O
use	O
an	O
arsenal	O
of	O
various	O
guns	O
,	O
grenades	O
and	O
explosives	O
,	O
and	O
vehicles	O
.	O
</s>
<s>
The	O
game	O
also	O
includes	O
the	O
option	O
to	O
customize	O
the	O
titular	O
Metal	B-Application
Slug	I-Application
to	O
their	O
own	O
liking	O
,	O
with	O
the	O
ability	O
to	O
switch	O
out	O
its	O
"	O
core	O
"	O
,	O
treads	O
,	O
weapons	O
,	O
and	O
armor	O
.	O
</s>
<s>
Metal	B-Application
Slug	I-Application
has	O
received	O
mixed	O
reviews	O
.	O
</s>
