<s>
is	O
a	O
Japan-exclusive	O
action	B-Application
video	I-Application
game	I-Application
released	O
for	O
the	O
Game	B-Device
Boy	I-Device
in	O
1990	O
.	O
</s>
<s>
Players	O
must	O
control	O
a	O
combat	O
robot	B-Algorithm
with	O
the	O
ultimate	O
goal	O
of	O
destroying	O
the	O
enemy	O
orb	O
.	O
</s>
<s>
Each	O
level	O
only	O
has	O
one	O
screen	O
to	O
blast	O
hostile	O
robots	B-Algorithm
,	O
solve	O
challenging	O
platforms	O
,	O
and	O
manipulate	O
a	O
series	O
of	O
short	O
puzzles	O
.	O
</s>
