<s>
Escape	B-Application
from	I-Application
the	I-Application
Planet	I-Application
of	I-Application
the	I-Application
Robot	I-Application
Monsters	I-Application
is	O
a	O
multidirectional	O
shooter	O
released	O
in	O
arcades	O
by	O
Atari	O
Games	O
in	O
1989	B-Application
.	O
</s>
<s>
It	O
was	O
ported	O
to	O
the	O
Amiga	B-Device
,	O
Amstrad	B-Device
CPC	I-Device
,	O
Atari	B-Device
ST	I-Device
,	O
Commodore	O
64	O
,	O
MS-DOS	B-Application
,	O
SAM	B-Device
Coupé	I-Device
,	O
and	O
ZX	B-Operating_System
Spectrum	I-Operating_System
.	O
</s>
<s>
According	O
to	O
the	O
introduction	O
,	O
Planet	B-Application
X	I-Application
is	O
a	O
synthetic	O
industrial	O
planetoid	O
whose	O
most	O
notable	O
feature	O
is	O
the	O
research	O
laboratory	O
of	O
the	O
buxom	O
and	O
brainy	O
Dr.	O
Sarah	O
Bellum	O
.	O
</s>
<s>
Escape	B-Application
From	I-Application
The	I-Application
Planet	I-Application
Of	I-Application
The	I-Application
Robot	I-Application
Monsters	I-Application
is	O
a	O
one	O
or	O
two-player	O
game	O
in	O
which	O
the	O
players	O
must	O
rescue	O
Dr.	O
Sarah	O
Bellum	O
from	O
Planet	B-Application
X	I-Application
,	O
where	O
her	O
research	O
facility	O
has	O
been	O
taken	O
over	O
by	O
the	O
evil	O
Reptilons	O
.	O
</s>
<s>
Players	O
control	O
their	O
avatars	O
using	O
Hall	O
effect	O
joysticks	O
,	O
a	O
form	O
of	O
analog	B-Device
joysticks	O
.	O
</s>
<s>
This	O
allows	O
players	O
to	O
aim	O
in	O
16	O
directions	O
(	O
22.5	O
°	O
apart	O
)	O
instead	O
of	O
the	O
45°	O
directional	O
control	O
offered	O
by	O
traditional	O
8-way	B-Application
joysticks	O
.	O
</s>
