<s>
Forbidden	B-Application
Siren	I-Application
2	I-Application
is	O
a	O
survival	O
horror	O
stealth	O
game	O
developed	O
by	O
Japan	O
Studio	O
's	O
Project	O
Siren	B-Application
team	O
and	O
published	O
by	O
Sony	O
Computer	O
Entertainment	O
for	O
the	O
PlayStation	B-Device
2	I-Device
in	O
2006	O
.	O
</s>
<s>
It	O
is	O
a	O
sequel	O
to	O
2003	O
's	O
Siren	B-Application
(	O
Forbidden	B-Application
Siren	I-Application
)	O
.	O
</s>
<s>
A	O
film	O
inspired	O
by	O
the	O
game	O
but	O
featuring	O
a	O
different	O
plot	O
and	O
characters	O
,	O
Siren	B-Application
,	O
was	O
released	O
that	O
same	O
year	O
.	O
</s>
<s>
Like	O
its	O
predecessor	O
,	O
Forbidden	B-Application
Siren	I-Application
2	I-Application
is	O
divided	O
into	O
numerous	O
scenarios	O
,	O
organized	O
chronologically	O
in	O
a	O
table	O
called	O
the	O
"	O
Link	O
Navigator	O
"	O
.	O
</s>
<s>
The	O
process	O
is	O
similar	O
to	O
tuning	O
into	O
a	O
radio	O
frequency	O
,	O
with	O
the	O
left	O
analog	B-Device
stick	I-Device
serving	O
as	O
the	O
dial	O
.	O
</s>
<s>
In	O
Forbidden	B-Application
Siren	I-Application
2	I-Application
,	O
the	O
sightjack	O
system	O
was	O
altered	O
to	O
allow	O
automatic	O
sightjacking	O
to	O
the	O
closest	O
enemy	O
without	O
having	O
to	O
tune	O
into	O
its	O
frequency	O
.	O
</s>
<s>
Over	O
time	O
,	O
Mother	O
has	O
been	O
determined	O
to	O
return	O
to	O
the	O
surface	O
,	O
and	O
has	O
sent	O
out	O
avatars	B-Application
(	O
possessed	O
human	O
beings	O
whom	O
she	O
controls	O
)	O
to	O
prepare	O
for	O
her	O
return	O
.	O
</s>
<s>
Kanae	O
is	O
actually	O
an	O
avatar	B-Application
of	O
Mother	O
,	O
tasked	O
with	O
manipulating	O
Shu	O
into	O
opening	O
the	O
seven	O
gates	O
of	O
the	O
Underworld	O
,	O
which	O
are	O
located	O
on	O
Yamijima	O
Island	O
,	O
and	O
keep	O
Mother	O
imprisoned	O
.	O
</s>
<s>
In	O
2005	O
,	O
Ryuko	O
Tagawa	O
has	O
been	O
sent	O
to	O
earth	O
as	O
another	O
avatar	B-Application
.	O
</s>
<s>
Mother	O
creates	O
another	O
avatar	B-Application
using	O
Yuri	O
's	O
identity	O
,	O
and	O
sends	O
her	O
to	O
visit	O
Ryuko	O
,	O
killing	O
her	O
for	O
failing	O
in	O
her	O
mission	O
.	O
</s>
<s>
As	O
the	O
group	O
talk	O
,	O
a	O
red	O
tsunami	O
appears	O
and	O
an	O
earthquake	O
rocks	O
the	O
island	O
as	O
a	O
siren	B-Application
rings	O
out	O
.	O
</s>
<s>
Elsewhere	O
on	O
the	O
island	O
,	O
Mother	O
's	O
siren	B-Application
sounds	O
,	O
signifying	O
her	O
release	O
,	O
prompting	O
Ichiko	O
to	O
kill	O
Shigeru	O
.	O
</s>
<s>
No	O
longer	O
able	O
to	O
resist	O
Mother	O
's	O
power	O
,	O
she	O
becomes	O
another	O
avatar	B-Application
.	O
</s>
<s>
The	O
sun	O
is	O
hidden	O
beyond	O
a	O
permanent	O
total	O
eclipse	B-Application
.	O
</s>
<s>
The	O
game	O
was	O
released	O
on	O
February	O
9	O
,	O
2006	O
,	O
in	O
Japan	O
on	O
the	O
PlayStation	B-Device
2	I-Device
.	O
</s>
<s>
Forbidden	B-Application
Siren	I-Application
2	I-Application
received	O
"	O
average	O
"	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
<s>
com	O
's	O
Chris	O
Pickering	O
(	O
a	O
fan	O
of	O
Siren	B-Application
)	O
also	O
said	O
that	O
the	O
game	O
removed	O
many	O
of	O
the	O
problems	O
inherent	O
to	O
the	O
original	O
but	O
fell	O
short	O
in	O
many	O
respects	O
.	O
</s>
<s>
Siren	B-Application
( サイレン	O
)	O
is	O
a	O
film	O
adaptation	O
of	O
Forbidden	B-Application
Siren	I-Application
2	I-Application
.	O
</s>
<s>
Siren	B-Application
was	O
directed	O
by	O
Yukihiko	O
Tsutsumi	O
and	O
stars	O
actors	O
Yui	O
Ichikawa	O
,	O
Leo	O
Morimoto	O
,	O
Naoki	O
Tanaka	O
,	O
Hiroshi	O
Abe	O
,	O
Naomi	O
Nishida	O
,	O
Suzuki	O
Matsuo	O
,	O
Kyûsaku	O
Shimada	O
,	O
Mai	O
Takahashi	O
,	O
and	O
Jun	O
Nishiyama	O
.	O
</s>
