<s>
Zip	B-Device
Zap	I-Device
is	O
an	O
action	B-Application
game	I-Application
developed	O
by	O
Ian	O
Weatherburn	O
for	O
Imagine	O
Software	O
and	O
released	O
for	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
in	O
1983	B-Application
.	O
</s>
<s>
When	O
it	O
arrives	O
,	O
however	O
,	O
it	O
is	O
attacked	O
by	O
aliens	O
and	O
must	O
manoeuvre	O
its	O
way	O
through	O
the	O
planet	O
,	O
avoiding	O
or	O
killing	O
the	O
aliens	O
,	O
gathering	O
fuel	O
cells	O
to	O
remain	O
powered	O
,	O
and	O
escaping	O
through	O
teleportals	B-General_Concept
to	O
move	O
on	O
to	O
the	O
next	O
level	O
.	O
</s>
