<s>
Space	B-Device
Defender	I-Device
is	O
a	O
fixed	O
shooter	O
video	O
game	O
for	O
the	O
Apple	B-Device
II	I-Device
written	O
by	O
Dan	O
Schuyler	O
and	O
published	O
by	O
Bel-Air	O
Software	O
in	O
1982	B-Application
.	O
</s>
<s>
It	O
requires	O
an	O
Apple	B-Device
II	I-Device
with	O
a	O
minimum	O
of	O
48K	O
RAM	B-Architecture
.	O
</s>
<s>
Players	O
play	O
as	O
the	O
Space	B-Device
Defender	I-Device
.	O
</s>
