<s>
is	O
a	O
multi-directional	O
shooter	O
arcade	B-Application
video	I-Application
game	I-Application
that	O
was	O
released	O
by	O
Namco	O
in	O
1980	O
.	O
</s>
<s>
The	O
only	O
direct	O
home	O
conversion	O
is	O
for	O
the	O
MSX	B-Operating_System
,	O
although	O
it	O
was	O
followed	O
up	O
by	O
two	O
sequels	O
:	O
Battle	B-Application
City	I-Application
for	O
the	O
Famicom	O
in	O
1985	O
and	O
Tank	B-Application
Force	I-Application
for	O
arcades	O
in	O
1991	O
.	O
</s>
<s>
The	O
enemy	O
tanks	O
attempt	O
to	O
destroy	O
the	O
player	O
's	O
base	O
(	O
represented	O
on	O
the	O
map	O
as	O
an	O
eagle	B-Protocol
)	O
as	O
well	O
as	O
the	O
player	O
tank	O
itself	O
.	O
</s>
<s>
Cash	O
Box	O
believed	O
that	O
"	O
the	O
real	O
excitement	O
"	O
of	O
Tank	B-Application
Battalion	I-Application
lied	O
within	O
its	O
ability	O
to	O
modify	O
the	O
level	O
design	O
by	O
destroying	O
the	O
brick	O
walls	O
.	O
</s>
<s>
enjoyed	O
the	O
Sord	B-Device
M5	I-Device
version	O
for	O
its	O
improvements	O
over	O
the	O
arcade	B-Application
original	O
,	O
such	O
as	O
the	O
smoother	O
movement	O
of	O
the	O
player	O
's	O
tank	O
,	O
but	O
disliked	O
the	O
squashed-looking	O
graphics	O
and	O
narrow	O
playing	O
space	O
.	O
</s>
<s>
While	O
the	O
writer	O
believed	O
the	O
MSX	B-Operating_System
version	O
was	O
superior	O
,	O
they	O
still	O
recommended	O
the	O
M5	O
version	O
for	O
Namco	O
fans	O
and	O
collectors	O
.	O
</s>
<s>
A	O
theme	O
based	O
on	O
the	O
game	O
for	O
Pac-Man	B-Application
99	I-Application
was	O
released	O
as	O
free	O
post-launch	O
DLC	O
,	O
featuring	O
visuals	O
and	O
sounds	O
from	O
the	O
game	O
.	O
</s>
