<s>
Zoo	B-Application
Keeper	I-Application
is	O
an	O
arcade	B-Application
video	I-Application
game	I-Application
created	O
by	O
Taito	O
America	O
and	O
released	O
in	O
1983	O
.	O
</s>
<s>
The	O
player	O
controls	O
Zeke	O
,	O
a	O
zookeeper	B-Language
,	O
attempting	O
to	O
rescue	O
his	O
girlfriend	O
Zelda	O
from	O
a	O
zoo	O
where	O
the	O
animals	O
have	O
escaped	O
from	O
their	O
cages	O
.	O
</s>
<s>
Zoo	B-Application
Keeper	I-Application
was	O
sold	O
as	O
a	O
conversion	O
kit	O
for	O
Taito	O
's	O
Qix	B-Device
.	O
</s>
<s>
Zoo	B-Application
Keeper	I-Application
has	O
three	O
different	O
types	O
of	O
stages	O
.	O
</s>
<s>
Zoo	B-Application
Keeper	I-Application
was	O
not	O
ported	O
to	O
contemporary	O
home	O
systems	O
,	O
but	O
programmer	O
Christopher	O
H	O
.	O
Omarzu	O
partially	O
implemented	O
an	O
Atari	B-General_Concept
2600	I-General_Concept
version	O
which	O
was	O
cancelled	O
in	O
1984	O
.	O
</s>
<s>
Zoo	B-Application
Keeper	I-Application
was	O
re-released	O
in	O
the	O
2005	O
Taito	O
Legends	O
collection	O
for	O
PlayStation	B-Device
2	I-Device
,	O
Xbox	B-Application
,	O
and	O
Microsoft	B-Application
Windows	I-Application
.	O
</s>
<s>
The	O
game	O
's	O
main	O
character	O
,	O
Zeke	O
,	O
later	O
appeared	O
in	O
a	O
family-friendly	O
version	O
of	O
Taito	O
's	O
mechanical	O
game	O
Ice	B-Application
Cold	I-Application
Beer	I-Application
called	O
Zeke	O
's	O
Peak	O
.	O
</s>
<s>
In	O
this	O
game	O
,	O
Zeke	O
is	O
a	O
mountain	O
climber	O
instead	O
of	O
a	O
zookeeper	B-Language
.	O
</s>
