<s>
Metal	B-Application
Slug	I-Application
1st	I-Application
Mission	I-Application
was	O
released	O
in	O
1999	B-Application
and	O
2000	B-Application
in	O
Japan	O
and	O
North	O
America	O
respectively	O
by	O
SNK	O
for	O
the	O
Neo	B-Application
Geo	I-Application
Pocket	I-Application
Color	I-Application
.	O
</s>
<s>
The	O
game	O
was	O
released	O
as	O
part	O
of	O
the	O
NEOGEO	B-Application
POCKET	I-Application
COLOR	I-Application
SELECTION	O
Vol	O
.	O
</s>
<s>
1	O
bundle	O
for	O
Nintendo	B-Application
Switch	I-Application
and	O
Steam	B-Application
.	O
</s>
<s>
Metal	B-Application
Slug	I-Application
1st	I-Application
Mission	I-Application
plays	O
similarly	O
to	O
other	O
Metal	B-Application
Slug	I-Application
games	O
,	O
but	O
has	O
toned	O
down	O
graphics	O
for	O
the	O
Neo	B-Application
Geo	I-Application
Pocket	I-Application
Color	I-Application
hardware	O
.	O
</s>
