<s>
Double	B-Application
Dragon	I-Application
II	I-Application
is	O
a	O
side-scrolling	O
beat-em-up	B-Application
released	O
for	O
the	O
Game	B-Device
Boy	I-Device
in	O
1991	O
developed	O
by	O
Technōs	O
Japan	O
and	O
published	O
by	O
Acclaim	O
in	O
North	O
America	O
and	O
Europe	O
.	O
</s>
<s>
Although	O
it	O
is	O
the	O
second	O
Double	B-Application
Dragon	I-Application
game	O
released	O
for	O
the	O
Game	B-Device
Boy	I-Device
,	O
it	O
is	O
unrelated	O
to	O
the	O
arcade	O
and	O
NES	O
game	O
Double	B-Application
Dragon	I-Application
II	I-Application
:	I-Application
The	I-Application
Revenge	I-Application
.	O
</s>
<s>
The	O
game	O
is	O
a	O
localization	O
of	O
the	O
1990	O
Japanese	O
Game	B-Device
Boy	I-Device
game	O
,	O
which	O
was	O
part	O
of	O
Technōs	O
Japans	O
Kunio-kun	O
series	O
.	O
</s>
<s>
A	O
second	O
player	O
can	O
now	O
join	O
in	O
anytime	O
via	O
the	O
use	O
of	O
a	O
Game	B-Device
Link	I-Device
Cable	I-Device
,	O
taking	O
control	O
of	O
Billy	O
's	O
brother	O
,	O
Jimmy	O
.	O
</s>
<s>
The	O
combat	O
system	O
is	O
simpler	O
compared	O
to	O
previous	O
Double	B-Application
Dragon	I-Application
games	O
,	O
including	O
the	O
first	O
Game	B-Device
Boy	I-Device
game	O
.	O
</s>
<s>
Instead	O
of	O
the	O
hair	O
grab	O
from	O
previous	O
games	O
,	O
the	O
player	O
will	O
do	O
a	O
collar	O
grab	O
(	O
similar	O
to	O
Renegade	B-Application
)	O
,	O
in	O
which	O
the	O
player	O
can	O
repeatedly	O
punch	O
the	O
opponent	O
in	O
the	O
face	O
or	O
push	O
them	O
to	O
the	O
ground	O
.	O
</s>
<s>
The	O
Japanese	O
version	O
,	O
Nekketsu	B-Application
Kōha	I-Application
Kunio-kun	I-Application
:	I-Application
Bangai	I-Application
Rantō	I-Application
Hen	I-Application
,	O
was	O
released	O
on	O
December	O
7	O
,	O
1990	O
.	O
</s>
<s>
The	O
Japanese	O
version	O
features	O
completely	O
different	O
graphics	O
(	O
drawn	O
in	O
a	O
style	O
similar	O
to	O
Downtown	B-Application
Nekketsu	I-Application
Monogatari	I-Application
,	O
the	O
Japanese	O
version	O
of	O
River	B-Application
City	I-Application
Ransom	I-Application
)	O
,	O
music	O
,	O
some	O
plot	O
from	O
Double	B-Application
Dragon	I-Application
II	I-Application
,	O
and	O
characters	O
(	O
with	O
Kunio	O
and	O
Riki	O
being	O
replaced	O
by	O
Billy	O
and	O
Jimmy	O
in	O
the	O
export	O
versions	O
)	O
.	O
</s>
<s>
While	O
the	O
play	O
mechanics	O
,	O
level	O
designs	O
,	O
and	O
overall	O
structure	O
of	O
the	O
game	O
are	O
relatively	O
unchanged	O
,	O
the	O
Stage	O
8	O
boss	O
(	O
originally	O
a	O
sumo	O
wrestler	O
)	O
was	O
a	O
given	O
different	O
attack	O
patterns	O
to	O
better	O
suit	O
his	O
new	O
design	O
as	O
a	O
ninja	B-Application
.	O
</s>
<s>
Before	O
Acclaim	O
bought	O
the	O
publishing	O
rights	O
to	O
the	O
game	O
and	O
retooled	O
it	O
as	O
Double	B-Application
Dragon	I-Application
II	I-Application
along	O
with	O
the	O
European	O
version	O
,	O
American	O
Technos	O
Inc	O
.	O
had	O
plans	O
to	O
localize	O
it	O
as	O
a	O
sequel	O
to	O
the	O
original	O
Renegade	B-Application
titled	O
The	O
Renegades	B-Application
for	O
US	O
version	O
and	O
Double	B-Application
Dragon	I-Application
II	I-Application
for	O
EU	O
version	O
.	O
</s>
