<s>
Photo	B-Operating_System
Hunt	I-Operating_System
is	O
a	O
spot	O
the	O
difference	O
game	O
featured	O
on	O
Megatouch	O
game	O
systems	O
,	O
which	O
are	O
coin-operated	O
,	O
touchscreen	O
video	O
games	O
primarily	O
found	O
in	O
bars	O
,	O
restaurants	O
,	O
and	O
taverns	O
.	O
</s>
<s>
Photo	B-Operating_System
Hunt	I-Operating_System
has	O
been	O
reworked	O
as	O
a	O
downloadable	O
version	O
for	O
the	O
iPhone	O
and	O
iPod	O
touch	O
.	O
</s>
<s>
Megatouch	O
also	O
released	O
a	O
variant	O
of	O
the	O
game	O
called	O
Erotic	B-Operating_System
Photo	I-Operating_System
Hunt	I-Operating_System
,	O
which	O
featured	O
sexually	O
explicit	O
photos	O
.	O
</s>
<s>
Photo	B-Operating_System
Hunt	I-Operating_System
is	O
a	O
spot	O
the	O
difference	O
game	O
.	O
</s>
<s>
Correct	O
choices	O
encircle	O
the	O
difference	O
in	O
green	O
and	O
incorrect	O
touches	O
deduct	O
time	O
,	O
with	O
the	O
game	B-Application
ending	I-Application
if	O
time	O
expires	O
on	O
any	O
level	O
.	O
</s>
<s>
Megatouch	O
also	O
released	O
a	O
variant	O
of	O
the	O
game	O
called	O
Erotic	B-Operating_System
Photo	I-Operating_System
Hunt	I-Operating_System
,	O
which	O
featured	O
sexually	O
explicit	O
photos	O
.	O
</s>
<s>
Photo	B-Operating_System
Hunt	I-Operating_System
has	O
been	O
reworked	O
as	O
a	O
downloadable	O
version	O
for	O
the	O
iPhone	O
and	O
iPod	O
touch	O
.	O
</s>
