<s>
stylized	O
as	O
N3	O
:	O
Ninety-Nine	B-Application
Nights	I-Application
,	O
is	O
a	O
2006	O
fantasy	O
hack	B-Application
and	I-Application
slash	I-Application
video	I-Application
game	I-Application
developed	O
for	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
by	O
an	O
alliance	O
between	O
Q	O
Entertainment	O
and	O
Phantagram	O
;	O
video	O
game	O
designer	O
Tetsuya	O
Mizuguchi	O
served	O
as	O
producer	O
for	O
the	O
game	O
.	O
</s>
<s>
The	O
game	O
features	O
hundreds	O
of	O
enemies	O
onscreen	O
at	O
any	O
given	O
time	O
,	O
and	O
borrows	O
heavily	O
from	O
other	O
video	O
games	O
of	O
the	O
genre	O
,	O
most	O
notably	O
from	O
the	O
Dynasty	B-Application
Warriors	I-Application
and	O
Kingdom	B-Application
Under	I-Application
Fire	I-Application
series	O
.	O
</s>
<s>
A	O
demo	O
of	O
Ninety-Nine	B-Application
Nights	I-Application
was	O
released	O
on	O
a	O
DVD-ROM	O
as	O
a	O
pre-order	O
bonus	O
in	O
Japan	O
,	O
and	O
on	O
July	O
28	O
,	O
2006	O
,	O
one	O
was	O
released	O
on	O
the	O
Xbox	B-Operating_System
Live	O
Marketplace	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Ninety-Nine	B-Application
Nights	I-Application
II	I-Application
was	O
announced	O
at	O
Microsoft	O
's	O
Tokyo	O
Game	O
Show	O
press	O
conference	O
in	O
2008	O
,	O
and	O
released	O
in	O
2010	O
.	O
</s>
<s>
After	O
completing	O
levels	O
in	O
Ninety-Nine	B-Application
Nights	I-Application
,	O
a	O
player	O
's	O
performance	O
is	O
scored	O
,	O
with	O
both	O
a	O
letter	O
grade	O
and	O
'	O
points	O
 '	O
being	O
awarded	O
,	O
depending	O
on	O
how	O
well	O
the	O
player	O
did	O
.	O
</s>
<s>
The	O
orb	O
collection	O
mechanic	O
is	O
not	O
unlike	O
that	O
found	O
in	O
Onimusha	B-Application
:	I-Application
Warlords	I-Application
except	O
that	O
it	O
is	O
automatic	O
.	O
</s>
<s>
The	O
orb	O
attacks	O
are	O
comparable	O
to	O
"	O
Musou	O
attacks	O
"	O
in	O
the	O
Dynasty	B-Application
Warriors	I-Application
series	O
,	O
in	O
that	O
the	O
player	O
is	O
invulnerable	O
while	O
making	O
them	O
,	O
although	O
in	O
Ninety-Nine	B-Application
Nights	I-Application
,	O
such	O
attacks	O
are	O
significantly	O
more	O
powerful	O
.	O
</s>
<s>
Kingdom	B-Application
Under	I-Application
Fire	I-Application
:	I-Application
Heroes	I-Application
developer	O
Youn-Lee	O
was	O
involved	O
in	O
creating	O
the	O
game	O
;	O
the	O
game	O
had	O
only	O
six	O
months	O
development	O
time	O
-	O
development	B-Application
kits	I-Application
were	O
received	O
in	O
September	O
2005	O
,	O
and	O
the	O
game	O
was	O
released	O
in	O
March	O
2006	O
in	O
Japan	O
.	O
</s>
<s>
Ninety-Nine	B-Application
Nights	I-Application
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>
<s>
In	O
Japan	O
,	O
however	O
,	O
Famitsu	O
gave	O
it	O
a	O
score	O
of	O
three	O
eights	O
and	O
one	O
seven	O
,	O
while	O
Famitsu	O
X360	B-Operating_System
gave	O
it	O
a	O
score	O
of	O
one	O
ten	O
and	O
three	O
nines	O
.	O
</s>
