<s>
is	O
a	O
side-scrolling	O
beat-	B-Application
'	I-Application
em-up	I-Application
produced	O
for	O
the	O
Nintendo	O
Entertainment	O
System	O
in	O
the	O
end	O
of	O
1989	O
.	O
</s>
<s>
It	O
is	O
the	O
second	O
Double	B-Application
Dragon	I-Application
game	O
for	O
the	O
NES	O
and	O
was	O
published	O
in	O
North	O
America	O
by	O
Acclaim	O
Entertainment	O
,	O
who	O
took	O
over	O
publishing	O
duties	O
from	O
Tradewest	O
.	O
</s>
<s>
The	O
game	O
shares	O
its	O
title	O
with	O
the	O
1988	B-Application
arcade	I-Application
sequel	I-Application
to	O
the	O
original	O
Double	B-Application
Dragon	I-Application
,	O
using	O
the	O
same	O
promotional	O
artwork	O
for	O
its	O
packaging	O
and	O
having	O
a	O
similar	O
plot	O
,	O
but	O
the	O
content	O
of	O
the	O
two	O
games	O
are	O
otherwise	O
drastically	O
different	O
.	O
</s>
<s>
The	O
NES	O
version	O
of	O
Double	B-Application
Dragon	I-Application
II	I-Application
was	O
directed	O
by	O
Hiroyuki	O
Sekimoto	O
(	O
co-director	O
of	O
River	B-Application
City	I-Application
Ransom	I-Application
)	O
,	O
with	O
the	O
arcade	O
version	O
's	O
director	O
Yoshihisa	O
Kishimoto	O
taking	O
a	O
supervisory	O
role	O
in	O
the	O
game	O
's	O
development	O
.	O
</s>
<s>
Players	O
control	O
Billy	B-Application
and	I-Application
Jimmy	I-Application
Lee	I-Application
,	O
who	O
are	O
on	O
a	O
mission	O
to	O
avenge	O
the	O
death	O
of	O
Billy	O
's	O
girlfriend	O
Marian	O
after	O
she	O
is	O
killed	O
during	O
an	O
attack	O
by	O
the	O
Shadow	B-Application
Warriors	I-Application
(	O
an	O
unnamed	O
group	O
in	O
the	O
Japanese	O
version	O
)	O
.	O
</s>
<s>
According	O
to	O
a	O
North	O
American	O
television	O
commercial	O
by	O
the	O
game	O
's	O
publisher	O
,	O
Acclaim	O
,	O
the	O
NES	O
version	O
of	O
Double	B-Application
Dragon	I-Application
II	I-Application
became	O
a	O
million	O
seller	O
soon	O
after	O
its	O
release	O
.	O
</s>
<s>
Unlike	O
the	O
first	O
NES	O
game	O
,	O
Double	B-Application
Dragon	I-Application
II	I-Application
can	O
be	O
played	O
by	O
up	O
to	O
two	O
players	O
simultaneously	O
.	O
</s>
<s>
Before	O
each	O
stage	O
,	O
a	O
cut-scene	O
is	O
shown	O
(	O
similar	O
to	O
the	O
ones	O
in	O
the	O
NES	O
version	O
of	O
Ninja	B-Application
Gaiden	I-Application
)	O
consisting	O
of	O
still	O
imagery	O
and	O
text	O
which	O
provides	O
the	O
setting	O
of	O
the	O
stage	O
.	O
</s>
<s>
Besides	O
the	O
final	O
boss	O
,	O
the	O
other	O
enemy	O
characters	O
that	O
are	O
introduced	O
in	O
this	O
version	O
are	O
the	O
"	O
Right	O
Arm	O
men	O
"	O
(	O
characters	O
based	O
on	O
the	O
villain	O
Jeff	O
from	O
the	O
arcade	O
editions	O
of	O
the	O
first	O
two	O
Double	B-Application
Dragon	I-Application
games	O
)	O
that	O
serve	O
as	O
recurring	O
sub-bosses	O
from	O
Mission	O
2	O
and	O
onward	O
,	O
and	O
the	O
ninjas	B-Application
that	O
appear	O
at	O
the	O
end	O
of	O
Mission	O
2	O
and	O
later	O
on	O
in	O
Mission	O
8	O
.	O
</s>
<s>
As	O
in	O
the	O
NES	O
release	O
of	O
Double	B-Application
Dragon	I-Application
,	O
no	O
more	O
than	O
two	O
enemy	O
characters	O
will	O
confront	O
the	O
players	O
at	O
any	O
given	O
time	O
,	O
and	O
they	O
will	O
both	O
be	O
the	O
same	O
type	O
of	O
enemy	O
.	O
</s>
<s>
The	O
NES	O
version	O
requires	O
the	O
player	O
to	O
input	O
a	O
cheat	O
code	O
at	O
the	O
game	B-Application
over	I-Application
screen	O
to	O
continue	O
the	O
game	O
at	O
the	O
previous	O
stage	O
,	O
while	O
the	O
Famicom	O
version	O
gives	O
this	O
option	O
as	O
a	O
standard	O
feature	O
.	O
</s>
<s>
The	O
PC	B-General_Concept
Engine	I-General_Concept
version	O
of	O
Double	B-Application
Dragon	I-Application
II	I-Application
:	I-Application
The	I-Application
Revenge	I-Application
,	O
released	O
in	O
Super	O
CD-ROM²	O
format	O
,	O
was	O
published	O
by	O
Naxat	O
Soft	O
on	O
March	O
12	O
,	O
1993	O
exclusively	O
in	O
Japan	O
.	O
</s>
<s>
The	O
PC	B-General_Concept
Engine	I-General_Concept
version	O
is	O
based	O
on	O
the	O
NES	O
version	O
of	O
the	O
game	O
instead	O
of	O
the	O
arcade	O
one	O
.	O
</s>
<s>
The	O
PC	B-General_Concept
Engine	I-General_Concept
version	O
allows	O
the	O
player	O
to	O
reach	O
the	O
final	O
stage	O
in	O
any	O
of	O
the	O
three	O
difficulty	O
settings	O
,	O
making	O
the	O
game	O
closer	O
to	O
the	O
Japanese	O
Famicom	O
version	O
in	O
this	O
regard	O
than	O
its	O
western	O
NES	O
counterpart	O
.	O
</s>
<s>
The	O
NES	O
version	O
was	O
re-released	O
on	O
the	O
Virtual	B-Application
Console	I-Application
in	O
North	O
America	O
on	O
June	O
21	O
,	O
2012	O
for	O
the	B-Operating_System
Wii	I-Operating_System
,	O
June	O
12	O
,	O
2014	O
for	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
,	O
and	O
August	O
14	O
,	O
2014	O
for	O
the	B-Operating_System
Wii	I-Operating_System
U	O
.	O
</s>
<s>
A	O
soundtrack	O
,	O
simply	O
titled	O
Double	B-Application
Dragon	I-Application
II	I-Application
:	I-Application
The	I-Application
Revenge	I-Application
,	O
was	O
published	O
in	O
Japan	O
by	O
Meldac	O
and	O
released	O
on	O
March	O
10	O
,	O
1990	O
.	O
</s>
<s>
The	O
soundtrack	O
also	O
features	O
a	O
vocal	O
J-pop	O
rendition	O
of	O
the	O
Double	B-Application
Dragon	I-Application
opening	O
theme	O
performed	O
by	O
Manami	O
Morozumi	O
titled	O
"	O
Dead	O
or	O
Alive	O
"	O
.	O
</s>
