<s>
is	O
a	O
horror-themed	O
adventure	O
game	O
developed	O
and	O
published	O
by	O
Human	O
Entertainment	O
for	O
the	O
PlayStation	B-Device
in	O
October	O
1997	O
.	O
</s>
<s>
An	O
entry	O
in	O
the	O
company	O
's	O
Twilight	B-Application
Syndrome	I-Application
series	O
,	O
the	O
game	O
was	O
directed	O
and	O
co-written	O
by	O
Goichi	O
Suda	O
.	O
</s>
<s>
Retaining	O
the	O
combination	O
of	O
adventure	O
and	O
visual	O
novel	O
elements	O
from	O
earlier	O
games	O
in	O
the	O
series	O
,	O
Moonlight	B-Application
Syndrome	I-Application
follows	O
series	O
protagonist	O
Mika	O
Kishii	O
as	O
she	O
investigates	O
supernatural	O
phenomena	O
.	O
</s>
<s>
Development	O
of	O
Moonlight	B-Application
Syndrome	I-Application
began	O
following	O
the	O
completion	O
of	O
Suda	O
's	O
work	O
on	O
the	O
first	O
Twilight	B-Application
Syndrome	I-Application
games	O
.	O
</s>
<s>
Due	O
to	O
having	O
little	O
input	O
on	O
the	O
original	O
games	O
 '	O
stories	O
and	O
disliking	O
the	O
ghost	O
story	O
elements	O
,	O
Suda	O
focused	O
the	O
plot	O
of	O
Moonlight	B-Application
Syndrome	I-Application
around	O
psychological	O
horror	O
and	O
human	O
capacity	O
for	O
evil	O
.	O
</s>
<s>
Suda	O
left	O
Human	O
Entertainment	O
to	O
form	O
Grasshopper	O
Manufacture	O
following	O
the	O
release	O
of	O
Moonlight	B-Application
Syndrome	I-Application
,	O
but	O
the	O
game	O
remained	O
an	O
influence	O
in	O
his	O
later	O
work	O
.	O
</s>
<s>
Similar	O
to	O
other	O
titles	O
in	O
the	O
Twilight	B-Application
Syndrome	I-Application
series	O
,	O
Moonlight	B-Application
Syndrome	I-Application
combines	O
elements	O
from	O
adventure	O
games	O
and	O
visual	O
novels	O
in	O
its	O
gameplay	O
.	O
</s>
<s>
Moonlight	B-Application
Syndrome	I-Application
takes	O
place	O
in	O
a	O
parallel	O
reality	O
to	O
that	O
of	O
the	O
main	O
Twilight	B-Application
Syndrome	I-Application
series	O
.	O
</s>
<s>
Following	O
the	O
events	O
of	O
Twilight	B-Application
Syndrome	I-Application
:	I-Application
Search	I-Application
and	O
Twilight	B-Application
Syndrome	I-Application
:	I-Application
Investigation	I-Application
,	O
Mika	O
Kishii	O
(	O
taking	O
over	O
the	O
main	O
protagonist	O
role	O
from	O
Yukari	O
Hasegawa	O
in	O
the	O
previous	O
games	O
)	O
is	O
now	O
a	O
second-year	O
student	O
at	O
Hinashiro	O
High	O
.	O
</s>
<s>
Unlike	O
in	O
the	O
Twilight	B-Application
Syndrome	I-Application
games	O
,	O
where	O
each	O
chapter	O
's	O
phenomena	O
and	O
threats	O
are	O
relatively	O
standalone	O
,	O
every	O
mystery	O
here	O
is	O
linked	O
to	O
the	O
white-haired	O
boy	O
and	O
Yayoi	O
(	O
who	O
is	O
revealed	O
to	O
be	O
the	O
sister	O
of	O
Chisato	O
)	O
,	O
apparently	O
working	O
in	O
conjunction	O
.	O
</s>
<s>
Moonlight	B-Application
Syndrome	I-Application
is	O
an	O
entry	O
from	O
the	O
Twilight	B-Application
Syndrome	I-Application
series	O
,	O
and	O
the	O
first	O
entry	O
in	O
the	O
series	O
to	O
feature	O
major	O
input	O
from	O
Goichi	O
Suda	O
,	O
who	O
acted	O
as	O
writer	O
and	O
director	O
.	O
</s>
<s>
Suda	O
had	O
previously	O
served	O
as	O
director	O
of	O
the	O
first	O
two	O
Twilight	B-Application
Syndrome	I-Application
games	O
when	O
the	O
original	O
director	O
had	O
to	O
step	O
down	O
due	O
to	O
scheduling	O
conflicts	O
,	O
but	O
he	O
was	O
unable	O
to	O
have	O
much	O
input	O
.	O
</s>
<s>
He	O
wanted	O
to	O
create	O
his	O
own	O
take	O
on	O
the	O
series	O
with	O
Moonlight	B-Application
Syndrome	I-Application
,	O
similar	O
to	O
how	O
he	O
had	O
created	O
an	O
unconventional	O
and	O
notoriously	O
dark	O
ending	O
to	O
Super	O
Fire	O
Pro	O
Wrestling	O
Special	O
in	O
reaction	O
to	O
his	O
restricted	O
work	O
on	O
Super	O
Fire	O
Pro	O
Wrestling	O
III	O
.	O
</s>
<s>
The	O
game	O
began	O
development	O
following	O
the	O
release	O
of	O
the	O
second	O
Twilight	B-Application
Syndrome	I-Application
game	O
.	O
</s>
<s>
Suda	O
's	O
main	O
wish	O
with	O
the	O
characters	O
was	O
to	O
take	O
the	O
cast	O
of	O
Twilight	B-Application
Syndrome	I-Application
and	O
confront	O
them	O
with	O
a	O
clashing	O
set	O
of	O
ideologies	O
.	O
</s>
<s>
Moonlight	B-Application
Syndrome	I-Application
also	O
saw	O
the	O
introduction	O
of	O
voice	O
acting	O
to	O
the	O
series	O
,	O
as	O
Suda	O
wanted	O
to	O
express	O
the	O
story	O
differently	O
.	O
</s>
<s>
Moonlight	B-Application
Syndrome	I-Application
was	O
the	O
last	O
game	O
Suda	O
worked	O
on	O
at	O
Human	O
Entertainment	O
before	O
leaving	O
.	O
</s>
<s>
Their	O
debut	O
game	O
,	O
The	B-Application
Silver	I-Application
Case	I-Application
,	O
was	O
released	O
in	O
1999	O
.	O
</s>
<s>
Suda	O
also	O
brought	O
in	O
Masahi	O
Ooka	O
as	O
co-writer	O
after	O
being	O
impressed	O
with	O
Ooka	O
's	O
work	O
on	O
a	O
supplemental	O
story	O
created	O
for	O
a	O
Moonlight	B-Application
Syndrome	I-Application
strategy	O
guide	O
.	O
</s>
<s>
Grasshopper	O
Manufacture	O
has	O
borrowed	O
settings	O
and	O
characters	O
from	O
Moonlight	B-Application
Syndrome	I-Application
for	O
The	B-Application
Silver	I-Application
Case	I-Application
and	O
some	O
of	O
their	O
other	O
work	O
including	O
Flower	B-Application
,	I-Application
Sun	I-Application
,	I-Application
and	I-Application
Rain	I-Application
.	O
</s>
<s>
The	O
game	O
's	O
urban	O
setting	O
,	O
which	O
featured	O
apartment	O
complexes	O
,	O
would	O
feature	O
in	O
other	O
projects	O
by	O
Suda	O
including	O
Blood+	O
:	O
One	O
Night	O
Kiss	O
and	O
No	B-Application
More	I-Application
Heroes	I-Application
.	O
</s>
<s>
Naoko	O
Sato	O
,	O
scenario	O
writer	O
of	O
the	O
video	O
game	O
Siren	B-Application
,	O
cited	O
Moonlight	B-Application
Syndrome	I-Application
as	O
one	O
of	O
the	O
inspirations	O
for	O
the	O
scenario	O
and	O
writing	O
of	O
Siren	B-Application
.	O
</s>
