<s>
Space	B-Application
Zap	I-Application
is	O
a	O
space-themed	O
fixed	O
shooter	O
arcade	B-Application
video	I-Application
game	I-Application
developed	O
by	O
Game-A-Tron	O
and	O
licensed	O
to	O
Midway	O
Manufacturing	O
in	O
1980	O
.	O
</s>
<s>
Space	B-Application
Zap	I-Application
shipped	O
in	O
three	O
form	O
factors	O
:	O
standard	O
upright	O
,	O
cocktail	O
,	O
and	O
Bally	O
's	O
Mini-Myte	O
reduced	O
size	O
cabinet	O
.	O
</s>
<s>
An	O
official	O
port	O
of	O
Space	B-Application
Zap	I-Application
for	O
the	O
Bally	B-Device
Astrocade	I-Device
was	O
released	O
in	O
1981	O
as	O
Space	O
Fortress	O
.	O
</s>
<s>
After	O
the	O
player	O
successfully	O
defends	O
the	O
base	O
they	O
encounter	O
an	O
attack	O
satellite	B-Application
that	O
flies	O
around	O
the	O
until	O
the	O
player	O
hits	O
it	O
or	O
satellite	B-Application
hits	O
the	O
base	O
.	O
</s>
<s>
The	O
points	O
values	O
are	O
250	O
for	O
shooting	O
a	O
mine	O
,	O
500	O
for	O
the	O
ship	O
,	O
and	O
2,000	O
for	O
the	O
attack	O
satellite	B-Application
.	O
</s>
<s>
Cosmic	B-Application
Ark	I-Application
,	O
published	O
by	O
Imagic	O
in	O
1982	O
for	O
the	O
Atari	B-General_Concept
2600	I-General_Concept
,	O
started	O
out	O
as	O
a	O
clone	O
of	O
Space	B-Application
Zap	I-Application
.	O
</s>
<s>
In	O
the	O
final	O
game	O
,	O
the	O
first	O
part	O
of	O
each	O
level	O
is	O
Space	B-Application
Zap	I-Application
played	O
with	O
an	O
Atari	B-Device
CX40	I-Device
joystick	I-Device
,	O
but	O
a	O
second	O
sequence	O
was	O
added	O
to	O
keep	O
it	O
from	O
being	O
repetitive	O
.	O
</s>
<s>
Space	B-Application
Zap	I-Application
clones	O
are	O
numerous	O
and	O
include	O
Outpost	B-Device
(	O
1981	O
)	O
for	O
the	O
Apple	B-Device
II	I-Device
,	O
Colorzap	O
(	O
1982	O
)	O
for	O
the	O
TRS-80	B-Device
Color	I-Device
Computer	I-Device
,	O
Cyclon	O
(	O
1983	O
)	O
for	O
the	O
VIC-20	B-Device
,	O
and	O
Starship	O
Pegasus	O
(	O
1984	O
)	O
for	O
the	O
TI-99/4A	B-Device
.	O
</s>
