<s>
Laser	B-Application
Invasion	I-Application
,	O
released	O
as	O
in	O
Japan	O
,	O
is	O
a	O
multi-genre	O
first-person	O
action	B-Application
game	I-Application
released	O
by	O
Konami	O
for	O
the	O
Nintendo	O
Entertainment	O
System	O
in	O
1991	B-Application
.	O
</s>
<s>
The	O
game	O
supports	O
the	O
standard	O
NES	O
controller	O
,	O
as	O
well	O
as	O
the	O
NES	B-Device
Zapper	I-Device
light	B-Device
gun	I-Device
and	O
the	O
LaserScope	B-Device
,	O
a	O
voice-activated	O
headset	O
controller	O
Konami	O
released	O
for	O
the	O
NES	O
that	O
was	O
compatible	O
with	O
all	O
light	B-Device
gun	I-Device
games	O
released	O
for	O
the	O
system	O
.	O
</s>
<s>
The	O
American	O
version	O
of	O
the	O
game	O
featured	O
a	O
rebate	O
for	O
the	O
LaserScope	B-Device
in	O
the	O
instruction	O
booklet	O
.	O
</s>
<s>
The	O
game	O
's	O
gun	O
shooting	O
segments	O
can	O
be	O
played	O
with	O
the	O
Zapper	O
or	O
the	O
LaserScope	B-Device
.	O
</s>
<s>
The	O
player	O
controls	O
the	O
helicopter	O
from	O
the	O
pilot	O
's	O
perspective	O
,	O
with	O
the	O
top	O
portion	O
of	O
the	O
screen	O
showing	O
the	O
player	O
's	O
current	O
flightpath	O
,	O
as	O
well	O
as	O
a	O
gun	B-Application
sight	I-Application
for	O
their	O
helicopter	O
's	O
vulcan	O
cannon	O
and	O
missiles	O
.	O
</s>
<s>
The	O
player	O
must	O
attack	O
all	O
enemy	O
soldiers	O
who	O
appear	O
by	O
shooting	O
them	O
with	O
their	O
handgun	O
as	O
they	O
would	O
in	O
any	O
other	O
light	B-Device
gun	I-Device
shooting	O
game	O
.	O
</s>
<s>
The	O
Japanese	O
Family	O
Computer	O
version	O
,	O
Gun	B-Application
Sight	I-Application
,	O
includes	O
a	O
password	O
feature	O
that	O
allows	O
the	O
player	O
to	O
begin	O
at	O
later	O
missions	O
.	O
</s>
<s>
The	O
Japanese	O
version	O
did	O
not	O
include	O
support	O
for	O
the	O
LaserScope	B-Device
,	O
only	O
allowing	O
the	O
player	O
to	O
use	O
the	O
standard	O
controller	O
or	O
the	O
Famicom	O
's	O
light	B-Device
gun	I-Device
.	O
</s>
