<s>
Ninja	B-Application
Master	I-Application
is	O
an	O
action	B-Application
game	I-Application
depicting	O
ninja	O
training	O
which	O
was	O
published	O
in	O
1986	O
for	O
various	O
8-bit	O
home	O
computers	O
by	O
the	O
Firebird	O
Software	O
silver	O
label	O
.	O
</s>
<s>
A	O
sequel	O
,	O
Oriental	B-Application
Hero	I-Application
,	O
was	O
developed	O
by	O
the	O
same	O
company	O
and	O
released	O
in	O
1987	O
.	O
</s>
<s>
Ninja	B-Application
Master	I-Application
received	O
mostly	O
negative	O
reviews	O
.	O
</s>
<s>
Despite	O
appearing	O
in	O
the	O
top	O
ten	O
best-selling	O
ZX	B-Operating_System
Spectrum	I-Operating_System
games	O
charts	O
for	O
four	O
straight	O
months	O
in	O
Sinclair	O
User	O
,	O
peaking	O
at	O
number	O
five	O
,	O
the	O
magazine	O
's	O
editors	O
gave	O
it	O
one	O
star	O
out	O
of	O
five	O
and	O
concluded	O
that	O
it	O
was	O
a	O
"[p]oor	O
quality	O
"	O
and	O
"[not]	O
the	O
Exploding	B-Application
Fist	I-Application
type	O
game	O
it	O
may	O
seem	O
.	O
</s>
