<s>
is	O
a	O
fixed	O
shooter	O
arcade	B-Application
video	I-Application
game	I-Application
developed	O
by	O
Shin	O
Nihon	O
Kikaku	O
(	O
SNK	O
)	O
and	O
released	O
in	O
1979	O
.	O
</s>
<s>
The	O
player	O
controls	O
a	O
spacecraft	O
which	O
must	O
fend	O
off	O
UFOs	O
,	O
meteors	B-Language
,	O
and	O
comets	B-Language
.	O
</s>
<s>
Due	O
to	O
the	O
game	O
being	O
monochrome	O
and	O
a	O
conversion	O
kit	O
for	O
Space	B-Application
Invaders	I-Application
,	O
many	O
Ozma	B-Device
Wars	I-Device
monitors	O
used	O
the	O
Space	B-Application
Invaders	I-Application
color	O
overlay	O
.	O
</s>
