<s>
It	O
was	O
released	O
in	O
1990	O
for	O
the	O
Game	B-Device
Boy	I-Device
;	O
with	O
most	O
of	O
the	O
gameplay	O
programmed	O
as	O
a	O
2D	O
shooter	O
with	O
some	O
levels	O
resembling	O
that	O
of	O
a	O
3D	O
shooter	O
video	O
game	O
.	O
</s>
<s>
Cosmo	B-Application
Tank	I-Application
has	O
three	O
modes	O
.	O
</s>
<s>
In	O
vs.	O
mode	O
,	O
the	O
Game	B-Device
Link	I-Device
Cable	I-Device
is	O
used	O
to	O
allow	O
two	O
players	O
to	O
race	O
to	O
defeat	O
the	O
alien	O
leader	O
.	O
</s>
<s>
After	O
either	O
beating	O
the	O
game	O
or	O
acquiring	O
a	O
game	B-Application
over	I-Application
,	O
the	O
player	O
is	O
given	O
a	O
rank	O
that	O
shows	O
how	O
far	O
he	O
made	O
it	O
in	O
the	O
game	O
along	O
with	O
their	O
target	O
score	O
.	O
</s>
<s>
Power	O
Play	O
gave	O
Cosmo	B-Application
Tank	I-Application
an	O
overall	O
rating	O
of	O
62%	O
(	O
equivalent	O
to	O
a	O
C−	O
letter	O
grade	O
)	O
.	O
</s>
