<s>
Rampart	B-Application
is	O
a	O
1990	O
video	O
game	O
released	O
by	O
Atari	O
Games	O
and	O
Midway	O
Games	O
that	O
combines	O
the	O
shoot	O
'	O
em	O
up	O
,	O
strategy	B-Application
,	O
and	O
puzzle	O
genres	O
.	O
</s>
<s>
It	O
debuted	O
as	O
an	O
arcade	O
game	O
with	O
trackball	B-Device
controls	O
,	O
and	O
was	O
ported	O
to	O
home	O
systems	O
.	O
</s>
<s>
Rampart	B-Application
is	O
considered	O
a	O
precursor	O
to	O
the	O
tower	B-Application
defense	I-Application
genre	O
of	O
the	O
following	O
decade	O
.	O
</s>
<s>
Shapes	O
like	O
those	O
from	O
Tetris	B-Device
appear	O
and	O
the	O
player	O
moves	O
and	O
rotates	O
them	O
with	O
the	O
goal	O
of	O
placing	O
them	O
so	O
that	O
they	O
close	O
gaps	O
in	O
the	O
existing	O
wall	O
or	O
extend	O
the	O
wall	O
around	O
additional	O
castles	O
.	O
</s>
<s>
Rampart	B-Application
has	O
been	O
ported	O
to	O
the	O
SNES	B-Application
,	O
Master	O
System	O
,	O
Mega	B-Operating_System
Drive/Genesis	I-Operating_System
,	O
Atari	B-General_Concept
Lynx	I-General_Concept
,	O
MS-DOS	B-Application
,	O
Macintosh	B-Device
,	O
Commodore	O
64	O
,	O
Amiga	B-Device
,	O
and	O
Atari	B-Device
ST	I-Device
.	O
</s>
<s>
Separate	O
versions	O
were	O
made	O
for	O
Game	B-Device
Boy	I-Device
,	O
Game	B-Device
Boy	I-Device
Color	I-Device
,	O
Nintendo	O
Entertainment	O
System	O
,	O
and	O
Famicom	O
.	O
</s>
<s>
The	O
NES	O
,	O
SNES	B-Application
,	O
and	O
MS-DOS	B-Application
versions	O
were	O
all	O
done	O
by	O
Bitmasters	O
,	O
and	O
the	O
NES	O
version	O
was	O
planned	O
for	O
publication	O
by	O
Tengen	O
(	O
without	O
a	O
Nintendo	O
license	O
)	O
,	O
but	O
was	O
switched	O
to	O
Jaleco	O
(	O
which	O
was	O
granted	O
a	O
Nintendo	O
license	O
)	O
,	O
and	O
the	O
SNES	B-Application
and	O
MS-DOS	B-Application
versions	O
were	O
published	O
by	O
Electronic	O
Arts	O
.	O
</s>
<s>
In	O
the	O
SNES	B-Application
and	O
MS-DOS	B-Application
versions	O
,	O
the	O
cannons	O
gained	O
can	O
also	O
be	O
converted	O
into	O
powerups	O
.	O
</s>
<s>
The	O
arcade	O
version	O
is	O
part	O
of	O
the	O
Midway	B-Application
Arcade	I-Application
Treasures	I-Application
compilation	O
for	O
the	O
GameCube	B-Application
,	O
PlayStation	B-Device
2	I-Device
,	O
Xbox	B-Operating_System
,	O
and	O
PlayStation	B-Operating_System
Portable	I-Operating_System
,	O
and	O
of	O
the	O
Midway	B-Application
Arcade	I-Application
Origins	I-Application
compilation	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
Xbox	B-Operating_System
360	I-Operating_System
.	O
</s>
<s>
It	O
is	O
bundled	O
in	O
a	O
dual	O
pack	O
with	O
Gauntlet	B-Device
for	O
the	O
Game	B-Device
Boy	I-Device
Advance	I-Device
.	O
</s>
<s>
A	O
PlayStation	B-Operating_System
3	I-Operating_System
version	O
with	O
Internet	O
multiplayer	O
mode	O
was	O
released	O
on	O
the	O
PlayStation	B-Device
Network	I-Device
on	O
May	O
10	O
,	O
2007	O
.	O
</s>
<s>
In	O
Japan	O
,	O
Game	O
Machine	O
listed	O
Rampart	B-Application
in	O
the	O
June	O
1	O
,	O
1991	O
issue	O
as	O
the	O
seventh	O
most-successful	O
table	O
arcade	O
unit	O
of	O
the	O
month	O
.	O
</s>
<s>
MegaTech	O
gave	O
the	O
Mega	B-Operating_System
Drive	I-Operating_System
version	O
90%	O
and	O
a	O
Hyper	O
Game	O
Award	O
,	O
saying	O
that	O
it	O
was	O
a	O
"	O
superb	O
blend	O
of	O
different	O
game	O
styles	O
"	O
.	O
</s>
<s>
Nintendo	B-Application
Power	I-Application
placed	O
it	O
the	O
fourth	O
best	O
Game	B-Device
Boy	I-Device
Game	O
of	O
1993	O
.	O
</s>
<s>
Rampart	B-Application
influenced	O
the	O
first	O
tower	B-Application
defense	I-Application
games	I-Application
around	O
a	O
decade	O
later	O
.	O
</s>
