<s>
The	O
Entex	B-Application
Select-a-game	I-Application
is	O
a	O
handheld	B-Application
game	I-Application
system	I-Application
released	O
in	O
1981	B-Application
by	O
Entex	O
Industries	O
.	O
</s>
<s>
Entex	O
released	O
six	O
games	O
for	O
the	O
device	O
before	O
they	O
dropped	O
support	O
in	O
1982	O
in	O
favor	O
of	O
the	O
Entex	B-Application
Adventure	I-Application
Vision	I-Application
.	O
</s>
<s>
The	O
Select-a-Game	O
uses	O
a	O
7	O
x	O
16	O
vacuum	B-General_Concept
fluorescent	I-General_Concept
display	I-General_Concept
(	O
VFD	O
)	O
array	O
of	O
large	O
dots	O
as	O
the	O
main	O
display	O
.	O
</s>
<s>
The	O
system	O
is	O
basically	O
a	O
display	O
and	O
controller	O
for	O
the	O
games	O
with	O
no	O
built-in	O
processor	B-Architecture
power	O
.	O
</s>
<s>
Each	O
game	O
cartridge	O
contains	O
a	O
microprocessor	B-Architecture
programmed	O
with	O
the	O
appropriate	O
game	O
code	O
in	O
it	O
.	O
</s>
<s>
In	O
this	O
respect	O
,	O
it	O
is	O
very	O
similar	O
to	O
the	O
concept	O
of	O
Milton	O
Bradley	O
's	O
Microvision	B-Application
system	O
released	O
a	O
few	O
years	O
earlier	O
.	O
</s>
<s>
Space	B-Application
Invader	I-Application
2	I-Application
came	O
with	O
the	O
system	O
.	O
</s>
<s>
In	O
late	O
1981	B-Application
,	O
Entex	O
was	O
sued	O
by	O
Coleco	O
,	O
which	O
held	O
the	O
licensing	O
rights	O
to	O
handheld	B-Application
versions	O
of	O
Pac-Man	B-Application
at	O
the	O
time	O
,	O
for	O
copyright	O
infringement	O
over	O
their	O
upcoming	O
release	O
of	O
Pacman	B-Application
2	I-Application
.	O
</s>
<s>
Because	O
of	O
this	O
,	O
Pacman	B-Application
2	I-Application
is	O
the	O
rarest	O
game	O
released	O
for	O
the	O
system	O
.	O
</s>
<s>
The	O
game	O
cartridges	O
play	O
very	O
similar	O
to	O
their	O
hand	O
held	O
counterparts	O
(	O
Entex	O
made	O
quite	O
a	O
few	O
hand	O
held	O
games	O
such	O
as	O
Space	B-Application
Invader	I-Application
2	I-Application
,	O
Basketball	O
3	O
,	O
Pacman	B-Application
2	I-Application
,	O
etc	O
.	O
</s>
