<s>
is	O
a	O
beat	B-Application
'	I-Application
em	I-Application
up	I-Application
video	O
game	O
released	O
for	O
arcades	O
and	O
Dreamcast	B-Operating_System
in	O
1999	O
.	O
</s>
<s>
Armed	O
with	O
their	O
fists	O
,	O
feet	O
,	O
and	O
whatever	O
weapons	O
they	O
should	O
find	O
along	O
the	O
way	O
,	O
players	O
are	O
tasked	O
with	O
ridding	O
an	O
unnamed	O
city	O
of	O
zombies	B-Application
.	O
</s>
<s>
Originally	O
titled	O
Blood	O
Bullet	O
:	O
The	B-Application
House	I-Application
of	I-Application
the	I-Application
Dead	I-Application
Side	O
Story	O
,	O
the	O
game	O
was	O
renamed	O
Zombies	B-Application
Nightmare	O
before	O
Sega	O
decided	O
on	O
the	O
name	O
Zombie	B-Application
Revenge	I-Application
.	O
</s>
<s>
This	O
game	O
serves	O
as	O
a	O
spin-off	O
to	O
Sega	O
's	O
popular	O
The	B-Application
House	I-Application
of	I-Application
the	I-Application
Dead	I-Application
series	O
of	O
light	O
gun	O
games	O
and	O
contains	O
numerous	O
references	O
to	O
its	O
parent	O
series	O
.	O
</s>
<s>
A	O
port	O
of	O
the	O
game	O
for	O
the	O
PlayStation	B-Device
2	I-Device
was	O
to	O
be	O
released	O
by	O
Acclaim	O
Entertainment	O
and	O
ported	O
by	O
Acclaim	O
Studios	O
Teesside	O
,	O
but	O
was	O
eventually	O
canceled	O
.	O
</s>
<s>
A	O
year	O
later	O
,	O
the	O
city	O
becomes	O
ravaged	O
by	O
zombies	B-Application
.	O
</s>
<s>
He	O
despises	O
all	O
humans	O
and	O
wishes	O
to	O
turn	O
them	O
all	O
into	O
zombies	B-Application
by	O
spreading	O
the	O
virus	O
.	O
</s>
<s>
Players	O
battle	O
zombies	B-Application
and	O
bosses	O
in	O
each	O
level	O
through	O
hand-to-hand	O
combat	O
,	O
guns	O
,	O
or	O
other	O
weapons	O
.	O
</s>
<s>
The	B-Operating_System
Dreamcast	I-Operating_System
version	O
of	O
the	O
game	O
adds	O
a	O
Battle	O
Mode	O
in	O
which	O
two	O
players	O
can	O
fight	O
each	O
other	O
in	O
one-on-one	O
combat	O
.	O
</s>
<s>
As	O
a	O
spin-off	O
,	O
the	O
game	O
contains	O
various	O
references	O
to	O
the	O
original	O
The	B-Application
House	I-Application
of	I-Application
the	I-Application
Dead	I-Application
game	O
.	O
</s>
<s>
Zombies	B-Application
sound	O
and	O
look	O
the	O
same	O
as	O
they	O
did	O
in	O
the	O
first	O
game	O
,	O
and	O
the	O
main	O
protagonists	O
from	O
both	O
the	O
original	O
series	O
and	O
Revenge	O
are	O
AMS	O
agents	O
.	O
</s>
<s>
At	O
the	O
start	O
of	O
the	O
game	O
,	O
computer	O
icons	O
of	O
Thomas	B-Application
Rogan	I-Application
and	O
"	O
G	O
"	O
can	O
be	O
seen	O
on	O
Linda	O
's	O
desktop	O
.	O
</s>
<s>
The	O
Curien	O
Mansion	O
seen	O
in	O
the	O
first	O
House	O
of	O
the	O
Dead	O
appears	O
as	O
its	O
own	O
stage	O
,	O
called	O
"	O
The	B-Application
House	I-Application
of	I-Application
the	I-Application
Dead	I-Application
"	O
and	O
the	O
music	O
from	O
the	O
first	O
stage	O
is	O
used	O
.	O
</s>
<s>
Upon	O
release	O
,	O
the	B-Operating_System
Dreamcast	I-Operating_System
version	O
received	O
"	O
mixed	O
"	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
