<s>
Chopper	B-Application
Attack	I-Application
,	O
known	O
in	O
Japan	O
as	O
,	O
is	O
a	O
helicopter-based	O
third-person	O
shooter	O
game	O
for	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
released	O
in	O
1997	O
.	O
</s>
<s>
Chopper	B-Application
Attack	I-Application
was	O
among	O
the	O
games	O
demonstrated	O
at	O
the	O
November	O
1996	O
Shoshinkai	O
show	O
.	O
</s>
<s>
The	O
game	O
received	O
mixed	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
GameRankings	O
.	O
</s>
<s>
Nintendo	B-Application
Power	I-Application
gave	O
the	O
game	O
6.6/10	O
,	O
stating	O
"	O
Play	O
control	O
is	O
a	O
bit	O
awkward	O
,	O
but	O
if	O
you	O
work	O
with	O
it	O
a	O
bit	O
,	O
you	O
'll	O
get	O
into	O
the	O
game.	O
"	O
</s>
