<s>
is	O
a	O
survival	O
horror	O
video	O
game	O
developed	O
and	O
published	O
by	O
Koei	O
for	O
the	O
Sega	B-Operating_System
Dreamcast	I-Operating_System
.	O
</s>
<s>
The	O
game	O
is	O
a	O
sequel	O
to	O
the	O
1996	O
Sony	B-Device
PlayStation	I-Device
and	O
Sega	B-Device
Saturn	I-Device
game	O
Nanatsu	B-Application
no	I-Application
Hikan	I-Application
.	O
</s>
<s>
Resident	B-Application
Evil	I-Application
)	O
views	O
.	O
</s>
<s>
There	O
is	O
also	O
a	O
unique	O
multiplayer	O
cooperative	O
mode	O
where	O
one	O
player	O
controls	O
Kei	O
and	O
the	O
other	O
Reina	O
(	O
a	O
feature	O
not	O
seen	O
in	O
survival	O
horror	O
games	O
until	O
the	O
2005	O
game	O
ObsCure	B-Application
)	O
This	O
mode	O
is	O
different	O
from	O
the	O
single-player	O
mode	O
,	O
as	O
it	O
is	O
much	O
shorter	O
and	O
objectives	O
,	O
monsters	O
,	O
and	O
events	O
are	O
all	O
altered	O
.	O
</s>
<s>
After	O
briefly	O
playing	O
the	O
multi-player	O
mode	O
,	O
IGN.com	O
stated	O
that	O
Nanatsu	B-Application
no	I-Application
Hikan	I-Application
:	O
Senritsu	O
no	O
Bishō	O
"	O
is	O
worth	O
a	O
try	O
by	O
importers	O
looking	O
for	O
something	O
different.	O
"	O
</s>
