<s>
Sega	B-Application
Ninja	I-Application
,	O
originally	O
released	O
as	O
in	O
Japan	O
,	O
is	O
a	O
run	O
and	O
gun	O
video	O
game	O
released	O
in	O
arcades	O
by	O
Sega	O
in	O
1985	O
.	O
</s>
<s>
The	O
game	O
features	O
Princess	O
Kurumi	O
( くるみ姫	O
Kurumi-Hime	O
)	O
,	O
the	O
titular	O
female	O
ninja	B-Application
,	O
battling	O
enemies	O
using	O
throwing	B-Application
knives	I-Application
and	O
throwing	O
stars	O
.	O
</s>
<s>
The	O
game	O
was	O
originally	O
released	O
in	O
arcades	O
as	O
Ninja	B-Application
Princess	I-Application
in	O
Japan	O
and	O
Sega	B-Application
Ninja	I-Application
internationally	O
.	O
</s>
<s>
In	O
contrast	O
to	O
most	O
later	O
games	O
in	O
the	O
genre	O
,	O
Ninja	B-Application
Princess	I-Application
has	O
a	O
feudal	O
Japan	O
setting	O
with	O
a	O
female	O
ninja	B-Application
protagonist	O
who	O
throws	O
shuriken	O
and	O
knives	O
.	O
</s>
<s>
A	O
revised	O
edition	O
for	O
the	O
Sega	O
Mark	O
III	O
console	O
titled	O
Ninja	B-Application
Princess	I-Application
1	O
Mega	O
Ban	O
-	O
Ninja	B-Application
( 忍者プリンセス1メガ版	O
忍者	O
)	O
was	O
released	O
in	O
1986	O
,	O
replacing	O
the	O
female	O
protagonist	O
with	O
a	O
male	O
ninja	B-Application
protagonist	O
who	O
has	O
to	O
rescue	O
her	O
.	O
</s>
<s>
This	O
version	O
was	O
subsequently	O
released	O
as	O
The	B-Application
Ninja	I-Application
for	O
the	O
Master	O
System	O
internationally	O
.	O
</s>
<s>
Ninja	B-Application
Princess	I-Application
is	O
a	O
run	O
and	O
gun	O
video	O
game	O
.	O
</s>
<s>
Enemies	O
include	O
samurai	B-Application
,	O
ninja	B-Application
and	O
dogs	O
.	O
</s>
<s>
The	O
player	O
's	O
normal	O
weapons	O
are	O
an	O
unlimited	O
supply	O
of	O
throwing	B-Application
knives	I-Application
,	O
but	O
power-ups	O
to	O
throwing	O
stars	O
are	O
available	O
;	O
in	O
addition	O
,	O
the	O
player	O
can	O
also	O
turn	O
invisible	O
for	O
a	O
short	O
period	O
of	O
time	O
.	O
</s>
<s>
Ports	O
of	O
the	O
game	O
were	O
released	O
for	O
Sega	O
's	O
SG-1000	B-Operating_System
and	O
Master	O
System	O
consoles	O
.	O
</s>
<s>
The	O
latter	O
version	O
,	O
retitled	O
Ninja	B-Application
Princess	I-Application
1	O
Mega	O
Ban	O
-	O
Ninja	B-Application
,	O
was	O
released	O
a	O
year	O
after	O
the	O
arcade	B-Application
game	O
and	O
changed	O
the	O
protagonist	O
from	O
female	O
to	O
male	O
.	O
</s>
<s>
Other	O
changes	O
include	O
the	O
rearranging	O
of	O
stages	O
from	O
the	O
original	O
Japanese	O
release	O
in	O
western	O
releases	O
of	O
the	O
game	O
as	O
well	O
as	O
a	O
scroll	B-Operating_System
system	O
,	O
which	O
requires	O
that	O
five	O
green	O
scrolls	B-Operating_System
must	O
be	O
collected	O
to	O
get	O
to	O
the	O
final	O
level	O
of	O
the	O
game	O
,	O
as	O
all	O
of	O
them	O
give	O
hints	O
on	O
how	O
the	O
final	O
level	O
must	O
be	O
entered	O
.	O
</s>
<s>
If	O
the	O
player	O
finishes	O
the	O
game	O
without	O
them	O
,	O
the	O
game	O
will	O
backtrack	O
to	O
a	O
level	O
closest	O
to	O
where	O
a	O
missing	O
scroll	B-Operating_System
lies	O
.	O
</s>
<s>
In	O
Japan	O
,	O
Game	O
Machine	O
listed	O
Ninja	B-Application
Princess	I-Application
on	O
their	O
May	B-Application
1	I-Application
,	I-Application
1985	I-Application
issue	O
as	O
being	O
the	O
most-successful	O
table	O
arcade	B-Application
cabinet	O
of	O
the	O
month	O
.	O
</s>
<s>
Computer	O
Gaming	O
World	O
stated	O
that	O
the	O
Master	O
System	O
version	O
was	O
the	O
most	O
entertaining	O
of	O
three	O
martial-arts	O
games	O
that	O
Sega	O
released	O
together	O
(	O
the	O
others	O
were	O
Black	B-Application
Belt	I-Application
and	O
Kung	B-Application
Fu	I-Application
Kid	I-Application
)	O
,	O
and	O
approved	O
of	O
its	O
unusual	O
visual	O
perspective	O
.	O
</s>
<s>
In	O
2017	O
,	O
Sam	O
Derboo	O
of	O
Hardcore	O
Gaming	O
101	O
noted	O
that	O
Ninja	B-Application
Princess	I-Application
predates	O
Capcom	O
's	O
genre-popularizing	O
run-and-gun	O
shooter	O
Commando	B-Application
(	O
1985	O
)	O
,	O
and	O
he	O
considers	O
Ninja	B-Application
Princess	I-Application
to	O
be	O
"	O
in	O
some	O
ways	O
the	O
more	O
advanced	O
concept.	O
"	O
</s>
<s>
While	O
he	O
considered	O
Commando	B-Application
to	O
be	O
a	O
refinement	O
of	O
Taito	O
's	O
Front	B-Application
Line	I-Application
(	O
1982	O
)	O
,	O
he	O
said	O
that	O
Ninja	B-Application
Princess	I-Application
brought	O
"	O
a	O
fresh	O
setting	O
and	O
interesting	O
new	O
elements.	O
"	O
</s>
<s>
He	O
also	O
praises	O
the	O
female	O
protagonist	O
,	O
but	O
criticizes	O
the	O
console	O
versions	O
for	O
making	O
the	O
protagonist	O
a	O
male	O
ninja	B-Application
who	O
has	O
to	O
rescue	O
her	O
instead	O
.	O
</s>
<s>
Sega	B-Application
Ninja	I-Application
is	O
a	O
plot	O
point	O
in	O
the	O
novel	O
Ready	B-Application
Player	I-Application
Two	I-Application
(	O
2020	O
)	O
.	O
</s>
