<s>
(	O
sometimes	O
written	O
Bonanza	B-Application
Brothers	I-Application
)	O
is	O
a	O
3D-style	O
,	O
2D	O
side-scrolling	O
stealth	O
action	B-Application
game	I-Application
developed	O
and	O
released	O
by	O
Sega	O
in	O
1990	B-Application
.	O
</s>
<s>
It	O
was	O
ported	O
to	O
various	O
home	O
systems	O
,	O
including	O
the	O
Mega	B-Operating_System
Drive/Genesis	I-Operating_System
,	O
Master	O
System	O
,	O
PC-Engine/TurboGrafx	B-General_Concept
-CD	I-General_Concept
,	O
and	O
several	O
home	O
computers	O
.	O
</s>
<s>
Bonanza	B-Application
Bros	I-Application
.	I-Application
is	O
a	O
side-scrolling	O
stealth	O
action	B-Application
game	I-Application
,	O
with	O
shooter	O
and	O
platform	O
game	O
elements	O
.	O
</s>
<s>
The	O
players	O
take	O
the	O
roles	O
of	O
one	O
or	O
both	O
of	O
the	O
brothers	O
Robo	O
(	O
1P	O
,	O
red	O
)	O
and	O
Mobo	O
(	O
2P	O
,	O
blue	O
)	O
(	O
Mike	O
and	O
Spike	O
in	O
some	O
PAL	O
versions	O
)	O
,	O
who	O
may	O
have	O
been	O
modeled	O
on	O
The	B-Application
Blues	I-Application
Brothers	I-Application
.	O
</s>
<s>
In	O
this	O
fashion	O
the	O
plot	O
and	O
gameplay	O
resemble	O
the	O
older	O
Atari	B-General_Concept
2600	I-General_Concept
title	O
Keystone	B-Application
Kapers	I-Application
,	O
but	O
with	O
added	O
features	O
that	O
are	O
similar	O
to	O
the	O
ones	O
in	O
Lock	B-Application
'	I-Application
n	I-Application
 '	I-Application
Chase	I-Application
.	O
</s>
<s>
The	O
arcade	O
game	O
was	O
ported	O
to	O
the	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive	I-Operating_System
,	O
Master	O
System	O
,	O
TurboGrafx-CD	B-General_Concept
(	O
Japan	O
only	O
)	O
,	O
ZX	B-Operating_System
Spectrum	I-Operating_System
(	O
Europe	O
only	O
)	O
,	O
Amstrad	B-Device
CPC	I-Device
(	O
Europe	O
only	O
)	O
,	O
Commodore	O
64	O
,	O
Amiga	B-Device
,	O
Sharp	B-Device
X68000	I-Device
(	O
Japan	O
only	O
)	O
and	O
Atari	B-Device
ST	I-Device
,	O
with	O
minor	O
graphics	O
differences	O
,	O
depending	O
on	O
the	O
system	O
,	O
and	O
some	O
changes	O
in	O
the	O
gameplay	O
,	O
mainly	O
in	O
the	O
bonus	O
stages	O
.	O
</s>
<s>
Game	O
Machine	O
listed	O
Bonanza	B-Application
Bros	I-Application
.	I-Application
on	O
their	O
July	O
15	O
,	O
1990	B-Application
issue	O
as	O
being	O
the	O
third	O
most-popular	O
arcade	O
game	O
in	O
Japan	O
at	O
that	O
point	O
.	O
</s>
<s>
Mega	B-Application
Zone	I-Application
magazine	O
enjoyed	O
the	O
Mega	B-Operating_System
Drive	I-Operating_System
version	O
for	O
its	O
usage	O
of	O
digitized	O
speech	O
and	O
stating	O
"	O
The	O
Best	O
thing	O
about	O
this	O
game	O
though	O
is	O
it	O
's	O
witty	O
.	O
</s>
<s>
Gamesradar	O
ranked	O
Bonanza	B-Application
Bros	I-Application
.	I-Application
at	O
#47	O
in	O
their	O
"	O
Best	O
Sega	B-Operating_System
Genesis/Mega	I-Operating_System
Drive	I-Operating_System
games	O
of	O
all	O
time	O
"	O
.	O
</s>
<s>
It	O
was	O
included	O
in	O
the	O
Japanese	O
version	O
of	O
Sonic	B-Application
Gems	I-Application
Collection	I-Application
(	O
it	O
was	O
removed	O
in	O
the	O
Western	O
release	O
)	O
.	O
</s>
<s>
It	O
has	O
also	O
seen	O
a	O
Sega	O
Ages	O
release	O
on	O
the	O
PlayStation	B-Device
2	I-Device
,	O
and	O
that	O
version	O
was	O
included	O
in	O
the	O
English	O
compilation	O
Sega	O
Classics	O
Collection	O
.	O
</s>
<s>
The	O
game	O
appeared	O
as	O
part	O
of	O
the	O
Sega	B-Operating_System
Genesis	I-Operating_System
Collection	O
for	O
the	O
PlayStation	B-Device
2	I-Device
and	O
PlayStation	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
The	O
game	O
next	O
appeared	O
in	O
Sonic	B-Application
's	I-Application
Ultimate	I-Application
Genesis	I-Application
Collection	I-Application
for	O
Xbox	B-Operating_System
360	I-Operating_System
and	O
PlayStation	B-Operating_System
3	I-Operating_System
.	O
</s>
<s>
The	O
game	O
is	O
also	O
playable	O
in	O
Sega	B-Operating_System
Genesis	I-Operating_System
Classics	O
for	O
PlayStation	B-Operating_System
4	I-Operating_System
,	O
Xbox	B-Device
One	I-Device
,	O
Nintendo	B-Application
Switch	I-Application
and	O
PC	O
.	O
</s>
<s>
The	O
first	O
is	O
called	O
Puzzle	B-Application
&	I-Application
Action	I-Application
:	I-Application
Tant-R	I-Application
which	O
was	O
released	O
in	O
the	O
year	O
1992	O
,	O
the	O
second	O
called	O
Puzzle	B-Application
&	I-Application
Action	I-Application
:	I-Application
Ichidant-R	I-Application
,	O
which	O
was	O
released	O
in	O
the	O
year	O
1994	O
.	O
</s>
<s>
These	O
two	O
arcade	O
games	O
were	O
ported	O
to	O
the	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive	I-Operating_System
and	O
Sega	B-Device
Saturn	I-Device
,	O
and	O
later	O
packaged	O
with	O
the	O
Sega	O
Ages	O
release	O
of	O
Bonanza	B-Application
Bros	I-Application
.	I-Application
on	O
the	O
PlayStation	B-Device
2	I-Device
.	O
</s>
<s>
A	O
third	O
arcade	O
game	O
,	O
Puzzle	B-Application
&	I-Application
Action	I-Application
:	I-Application
Treasure	I-Application
Hunt	I-Application
,	O
was	O
released	O
in	O
1995	O
by	O
Sega	O
and	O
ported	O
to	O
the	O
Sega	B-Device
Saturn	I-Device
in	O
Japan	O
by	O
CRI	O
.	O
</s>
<s>
Bonanza	B-Application
Bros	I-Application
.	I-Application
was	O
also	O
included	O
in	O
Sonic	B-Application
Gems	I-Application
Collection	I-Application
but	O
only	O
for	O
the	O
Japanese	O
Market	O
.	O
</s>
<s>
Due	O
to	O
its	O
violent	O
content	O
,	O
it	O
was	O
removed	O
from	O
the	O
US	O
and	O
PAL	O
releases	O
along	O
with	O
the	O
Streets	B-Application
of	I-Application
Rage	I-Application
series	O
in	O
order	O
to	O
preserve	O
its	O
universal	O
rating	O
.	O
</s>
<s>
However	O
,	O
Bonanza	B-Application
Bros	I-Application
.	I-Application
made	O
its	O
first	O
appearance	O
on	O
the	O
recent	O
Sega	B-Operating_System
Genesis	I-Operating_System
Collection	O
for	O
the	O
PS2	B-Device
in	O
North	O
America	O
as	O
the	O
PS2	B-Device
version	O
of	O
Sonic	B-Application
Gems	I-Application
Collection	I-Application
remains	O
in	O
Japan	O
and	O
Europe	O
.	O
</s>
<s>
On	O
January	O
29	O
,	O
2007	O
,	O
the	O
Mega	B-Operating_System
Drive/Genesis	I-Operating_System
version	O
of	O
Bonanza	B-Application
Bros	I-Application
.	I-Application
became	O
available	O
for	O
download	O
on	O
the	B-Operating_System
Wii	I-Operating_System
Virtual	B-Application
Console	I-Application
in	O
America	O
.	O
</s>
<s>
Robo	O
and	O
Mobo	O
later	O
appeared	O
as	O
playable	O
characters	O
in	O
Sonic	B-Application
&	I-Application
Sega	I-Application
All-Stars	I-Application
Racing	I-Application
and	O
made	O
a	O
cameo	O
in	O
the	O
"	O
Race	O
of	O
AGES	O
"	O
track	O
in	O
Sonic	B-Application
&	I-Application
All-Stars	I-Application
Racing	I-Application
Transformed	I-Application
.	O
</s>
