<s>
is	O
a	O
video	O
game	O
developed	O
by	O
Beam	O
Software	O
and	O
released	O
in	O
1991	O
exclusively	O
for	O
the	O
Game	B-Device
Boy	I-Device
.	O
</s>
<s>
It	O
is	O
a	O
follow-up	O
to	O
the	O
original	O
Choplifter	B-Application
and	O
the	O
first	O
entry	O
in	O
the	O
series	O
released	O
for	O
the	O
Game	B-Device
Boy	I-Device
.	O
</s>
<s>
Gameplay	O
is	O
largely	O
the	O
same	O
as	O
the	O
original	O
Choplifter	B-Application
and	O
revolves	O
around	O
piloting	O
a	O
rescue	O
helicopter	B-Application
into	O
hostile	O
territory	O
and	O
rescuing	O
hostages	O
.	O
</s>
<s>
Enemies	O
like	O
birds	O
,	O
fighter	O
jets	O
,	O
and	O
ammunition	O
fired	O
from	O
various	O
weapons	O
can	O
harm	O
the	O
player	O
's	O
helicopter	B-Application
.	O
</s>
<s>
Mean	O
Machines	O
gave	O
the	O
game	O
a	O
90%	O
,	O
calling	O
it	O
a	O
"	O
perfect	O
mini	O
blastathon	O
which	O
packs	O
thrills	O
and	O
spills	O
in	O
a	O
totally	O
addictive	O
package	O
that	O
's	O
impossible	O
to	O
resist	O
"	O
and	O
"	O
a	O
simple	O
,	O
yet	O
highly	O
compelling	O
game	O
...	O
"	O
that	O
"	O
should	O
keep	O
you	O
glued	O
to	O
your	O
Gameboy	B-Device
for	O
weeks	O
"	O
.	O
</s>
