<s>
Qwak	B-Application
!	I-Application
</s>
<s>
is	O
a	O
single-player	O
duck	O
hunting	O
light	B-Device
gun	I-Device
shooter	O
arcade	B-Application
video	I-Application
game	I-Application
developed	O
by	O
Atari	O
and	O
released	O
in	O
November	O
1974	O
.	O
</s>
<s>
In	O
the	O
game	O
,	O
ducks	O
fly	O
one	O
at	O
a	O
time	O
across	O
the	O
screen	O
,	O
and	O
the	O
player	O
shoots	O
at	O
them	O
using	O
a	O
light	B-Device
gun	I-Device
attached	O
to	O
the	O
game	O
cabinet	O
.	O
</s>
<s>
Development	O
of	O
Qwak	B-Application
!	I-Application
</s>
<s>
A	O
two-player	O
clone	O
game	O
by	O
U.S.	O
Billiards	O
,	O
Duck	O
Shooting	O
,	O
was	O
produced	O
around	O
the	O
same	O
time	O
,	O
and	O
Qwak	B-Application
!	I-Application
</s>
<s>
has	O
been	O
suspected	O
as	O
a	O
possible	O
inspiration	O
for	O
the	O
1984	O
Nintendo	O
Entertainment	O
System	O
light	B-Device
gun	I-Device
game	O
Duck	B-Application
Hunt	I-Application
.	O
</s>
<s>
Qwak	B-Application
!	I-Application
</s>
<s>
is	O
a	O
duck	O
hunting	O
arcade	B-Application
game	O
in	O
which	O
the	O
player	O
uses	O
a	O
rifle-shaped	O
light	B-Device
gun	I-Device
to	O
fire	O
at	O
targets	O
on	O
the	O
screen	O
.	O
</s>
<s>
As	O
with	O
other	O
light	B-Device
gun	I-Device
games	O
,	O
a	O
hit	O
is	O
registered	O
if	O
the	O
gun	O
is	O
pointed	O
at	O
the	O
duck	O
or	O
similar	O
light	O
source	O
when	O
the	O
trigger	O
is	O
pulled	O
;	O
no	O
projectile	O
is	O
fired	O
.	O
</s>
<s>
Qwak	B-Application
!	I-Application
</s>
<s>
was	O
released	O
in	O
a	O
standard	O
upright	O
arcade	B-Application
cabinet	O
with	O
a	O
black	B-Application
and	I-Application
white	I-Application
raster	B-Algorithm
television	O
monitor	O
inset	O
,	O
with	O
the	O
rifle	O
holster	O
and	O
start	O
button	O
below	O
as	O
the	O
only	O
controls	O
.	O
</s>
<s>
When	O
the	O
gun	O
is	O
triggered	O
,	O
the	O
duck	O
additionally	O
flashes	O
white	O
briefly	O
,	O
so	O
as	O
to	O
be	O
detected	O
by	O
the	O
light	B-Device
gun	I-Device
;	O
the	O
relative	O
brightness	O
of	O
the	O
screen	O
makes	O
this	O
effect	O
less	O
obvious	O
than	O
with	O
other	O
similar	O
light	B-Device
gun	I-Device
games	O
.	O
</s>
<s>
Qwak	B-Application
!	I-Application
</s>
<s>
was	O
one	O
of	O
the	O
earliest	O
light	B-Device
gun	I-Device
video	O
games	O
,	O
preceded	O
by	O
Sega	O
's	O
arcade	B-Application
video	I-Application
game	I-Application
Balloon	O
Gun	O
in	O
August	O
1974	O
and	O
a	O
game	O
for	O
the	O
Magnavox	B-Device
Odyssey	I-Device
video	B-Device
game	I-Device
console	I-Device
in	O
1972	O
.	O
</s>
<s>
In	O
turn	O
,	O
they	O
were	O
preceded	O
by	O
light	B-Device
gun	I-Device
electro-mechanical	O
games	O
in	O
arcades	O
since	O
the	O
Seeberg	O
Ray-O-Lite	O
in	O
1936	O
.	O
</s>
<s>
Qwak	B-Application
!	I-Application
</s>
<s>
Critics	O
have	O
noted	O
the	O
similarity	O
between	O
Qwak	B-Application
!	I-Application
</s>
<s>
and	O
the	O
1984	O
Nintendo	O
light	B-Device
gun	I-Device
game	O
for	O
the	O
Nintendo	O
Entertainment	O
System	O
titled	O
Duck	B-Application
Hunt	I-Application
.	O
</s>
<s>
The	O
patent	O
,	O
filed	O
by	O
Ralph	O
Baer	O
,	O
was	O
for	O
the	O
light	B-Device
gun	I-Device
peripheral	O
used	O
in	O
the	O
Magnavox	B-Device
Odyssey	I-Device
game	O
and	O
was	O
held	O
to	O
be	O
infringed	O
on	O
by	O
Duck	B-Application
Hunt	I-Application
.	O
</s>
<s>
Nintendo	O
unsuccessfully	O
claimed	O
that	O
Baer	O
had	O
based	O
his	O
patent	O
not	O
only	O
on	O
the	O
Odyssey	B-Device
work	O
but	O
also	O
on	O
Qwak	B-Application
!	I-Application
</s>
