<s>
Galaxy	B-Application
Invasion	I-Application
is	O
a	O
clone	O
of	O
Namco	O
's	O
Galaxian	B-Application
arcade	O
game	O
written	O
by	O
Big	B-Device
Five	I-Device
Software	I-Device
founders	O
Bill	O
Hogue	O
and	O
Jeff	O
Konyu	O
for	O
the	O
TRS-80	B-Device
16K	O
and	O
published	O
in	O
1980	B-Application
.	O
</s>
<s>
Galaxy	B-Application
Invasion	I-Application
was	O
followed	O
by	O
an	O
enhanced	O
version	O
in	O
1982	O
,	O
Galaxy	B-Application
Invasion	I-Application
Plus	O
,	O
which	O
includes	O
voice	O
.	O
</s>
<s>
Galaxy	B-Application
Invasion	I-Application
is	O
a	O
game	O
of	O
defending	O
a	O
lone	O
missile	O
base	O
from	O
alien	O
ships	O
.	O
</s>
<s>
Jon	O
Mishcon	O
reviewed	O
Galaxy	B-Application
Invasion	I-Application
in	O
The	O
Space	O
Gamer	O
No	O
.	O
</s>
