<s>
is	O
an	O
action-platform	O
video	O
game	O
developed	O
and	O
published	O
by	O
Capcom	O
.	O
</s>
<s>
It	O
is	O
a	O
spin-off	O
game	O
in	O
the	O
original	O
Mega	O
Man	O
series	O
and	O
was	O
originally	O
released	O
in	O
Japan	O
for	O
the	O
Super	B-Application
Famicom	I-Application
on	O
April	O
24	O
,	O
1998	O
.	O
</s>
<s>
It	O
was	O
later	O
ported	O
to	O
the	O
Game	B-Device
Boy	I-Device
Advance	I-Device
(	O
GBA	B-Device
)	O
handheld	B-Application
in	O
2002	O
,	O
and	O
localized	O
in	O
English	O
and	O
released	O
the	O
following	O
year	O
.	O
</s>
<s>
After	O
defeating	O
the	O
evil	O
Dr.	O
Wily	O
many	O
times	O
,	O
the	O
robotic	O
hero	O
Mega	O
Man	O
is	O
called	O
into	O
action	B-Application
once	O
again	O
when	O
a	O
powerful	O
being	O
known	O
as	O
King	O
steals	O
the	O
blueprints	O
to	O
the	O
creations	O
of	O
Dr.	O
Wily	O
and	O
Dr.	O
Light	O
in	O
order	O
to	O
create	O
an	O
army	O
for	O
robotic	O
dominance	O
over	O
humans	O
.	O
</s>
<s>
The	O
game	O
is	O
an	O
action-platformer	O
where	O
the	O
player	O
advances	O
by	O
defeating	O
bosses	O
and	O
acquiring	O
their	O
signature	O
weapons	O
.	O
</s>
<s>
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
lets	O
the	O
player	O
choose	O
between	O
either	O
of	O
its	O
title	O
characters	O
,	O
each	O
of	O
which	O
plays	O
differently	O
from	O
the	O
other	O
.	O
</s>
<s>
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
debuted	O
on	O
the	O
aging	O
16-bit	B-Application
Super	B-Application
Famicom	I-Application
despite	O
the	O
series	O
having	O
already	O
transitioned	O
to	O
the	O
PlayStation	B-Device
and	O
Sega	B-Device
Saturn	I-Device
with	O
Mega	B-Application
Man	I-Application
8	I-Application
.	O
</s>
<s>
Producer	O
Keiji	O
Inafune	O
claimed	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
was	O
created	O
with	O
regard	O
to	O
younger	O
players	O
who	O
did	O
not	O
yet	O
own	O
one	O
of	O
the	O
more	O
advanced	O
gaming	O
systems	O
.	O
</s>
<s>
Although	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
shares	O
many	O
traits	O
with	O
previous	O
console	O
games	O
in	O
the	O
series	O
,	O
Mega	B-Application
Man	I-Application
9	I-Application
would	O
n't	O
be	O
released	O
up	O
until	O
2008	O
.	O
</s>
<s>
The	O
story	O
of	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
varies	O
extremely	O
depending	O
on	O
which	O
player	O
character	O
is	O
chosen	O
.	O
</s>
<s>
It	O
begins	O
one	O
year	O
after	O
the	O
events	O
of	O
Mega	B-Application
Man	I-Application
8	I-Application
when	O
a	O
robot	B-Algorithm
villain	O
named	O
King	O
breaks	O
into	O
Dr.	O
Wily	O
's	O
laboratory	O
and	O
then	O
the	O
Robot	B-Algorithm
Museum	O
to	O
collect	O
the	O
data	O
blueprints	O
for	O
the	O
creations	O
of	O
Dr.	O
Light	O
.	O
</s>
<s>
Dr.	O
Light	O
alerts	O
the	O
hero	O
Mega	O
Man	O
that	O
he	O
must	O
go	O
at	O
once	O
to	O
the	O
Robot	B-Algorithm
Museum	O
to	O
confront	O
this	O
new	O
enemy	O
.	O
</s>
<s>
Meanwhile	O
,	O
Bass	O
(	O
Mega	O
Man	O
's	O
rival	O
and	O
Wily	O
's	O
greatest	O
creation	O
)	O
hears	O
of	O
the	O
new	O
criminal	O
's	O
appearance	O
and	O
decides	O
to	O
prove	O
himself	O
the	O
stronger	O
robot	B-Algorithm
by	O
defeating	O
King	O
.	O
</s>
<s>
King	O
divulges	O
his	O
plan	O
to	O
him	O
;	O
he	O
desires	O
to	O
create	O
a	O
utopia	B-Application
in	O
which	O
robots	B-Algorithm
rule	O
the	O
world	O
over	O
humans	O
.	O
</s>
<s>
With	O
their	O
own	O
motivations	O
,	O
Mega	B-Application
Man	I-Application
and	I-Application
Bass	I-Application
set	O
out	O
to	O
put	O
a	O
stop	O
to	O
King	O
's	O
plans	O
.	O
</s>
<s>
After	O
vanquishing	O
eight	O
powerful	O
robots	B-Algorithm
under	O
allegiance	O
to	O
King	O
,	O
the	O
duo	O
infiltrates	O
his	O
castle	O
and	O
engages	O
him	O
in	O
combat	O
.	O
</s>
<s>
Putting	O
all	O
of	O
his	O
remaining	O
energy	O
into	O
a	O
blast	O
,	O
Proto	O
Man	O
manages	O
to	O
destroy	O
King	O
's	O
shield	O
and	O
loses	O
consciousness	O
,	O
allowing	O
Mega	B-Application
Man	I-Application
and	I-Application
Bass	I-Application
to	O
best	O
King	O
in	O
battle	O
afterwards	O
.	O
</s>
<s>
King	O
questions	O
why	O
they	O
fight	O
so	O
hard	O
for	O
humans	O
when	O
robots	B-Algorithm
are	O
the	O
superior	O
species	O
.	O
</s>
<s>
The	O
pair	O
explains	O
that	O
humans	O
are	O
the	O
ones	O
who	O
created	O
robots	B-Algorithm
in	O
the	O
first	O
place	O
,	O
which	O
confuses	O
King	O
,	O
who	O
teleported	O
Proto	O
Man	O
out	O
of	O
his	O
castle	O
after	O
the	O
battle	O
.	O
</s>
<s>
When	O
King	O
asks	O
the	O
evil	O
inventor	O
why	O
robots	B-Algorithm
fight	O
each	O
other	O
for	O
the	O
sake	O
of	O
humans	O
,	O
Wily	O
strengthens	O
his	O
"	O
brainwashing	O
level	O
"	O
and	O
restores	O
his	O
power	O
.	O
</s>
<s>
Mega	B-Application
Man	I-Application
and	I-Application
Bass	I-Application
engage	O
King	O
in	O
another	O
battle	O
and	O
defeat	O
him	O
.	O
</s>
<s>
Mega	B-Application
Man	I-Application
and	I-Application
Bass	I-Application
confront	O
Dr.	O
Wily	O
in	O
his	O
newly	O
regained	O
laboratory	O
.	O
</s>
<s>
Proto	O
Man	O
tells	O
Bass	O
that	O
although	O
he	O
is	O
a	O
strong	O
robot	B-Algorithm
of	O
free	O
will	O
,	O
he	O
can	O
never	O
defeat	O
his	O
rival	O
because	O
he	O
has	O
nothing	O
for	O
which	O
to	O
fight	O
.	O
</s>
<s>
The	O
gameplay	O
in	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
is	O
similar	O
to	O
earlier	O
games	O
in	O
the	O
series	O
.	O
</s>
<s>
The	O
player	O
is	O
tasked	O
with	O
completing	O
a	O
series	O
of	O
action-platform	O
stages	O
while	O
overcoming	O
obstacles	O
,	O
solving	O
minor	O
puzzles	O
,	O
and	O
battling	O
enemies	O
.	O
</s>
<s>
Destroying	O
the	O
"	O
Robot	B-Algorithm
Master	O
"	O
boss	O
at	O
the	O
end	O
of	O
a	O
stage	O
lets	O
the	O
player	O
acquire	O
its	O
special	O
weapon	O
.	O
</s>
<s>
Bass	O
is	O
also	O
able	O
to	O
double-jump	O
(	O
jump	O
a	O
second	O
time	O
in	O
mid-air	O
)	O
and	O
dash	O
along	O
the	O
ground	O
(	O
similar	O
to	O
X	O
in	O
Mega	B-Application
Man	I-Application
X	I-Application
)	O
.	O
</s>
<s>
After	O
the	O
introduction	O
level	O
,	O
the	O
player	O
can	O
only	O
choose	O
between	O
three	O
Robot	B-Algorithm
Masters	O
.	O
</s>
<s>
Clearing	O
one	O
of	O
these	O
unlocked	O
stages	O
opens	O
the	O
way	O
to	O
a	O
security	O
room	O
where	O
the	O
player	O
must	O
destroy	O
a	O
series	O
of	O
crystals	O
with	O
obtained	O
Robot	B-Algorithm
Master	O
weapons	O
.	O
</s>
<s>
However	O
,	O
unlike	O
in	O
Mega	B-Application
Man	I-Application
7	I-Application
the	O
security	O
cavern	O
offers	O
a	O
way	O
to	O
obtain	O
large	O
amounts	O
of	O
bolts	O
without	O
having	O
to	O
repeatedly	O
visit	O
stages	O
.	O
</s>
<s>
Also	O
distributed	O
throughout	O
the	O
introduction	O
and	O
Robot	B-Algorithm
Master	O
levels	O
are	O
a	O
collection	O
of	O
100	O
data	O
CDs	O
that	O
contain	O
information	O
on	O
many	O
prominent	O
characters	O
in	O
the	O
series	O
.	O
</s>
<s>
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
was	O
developed	O
for	O
the	O
Super	B-Application
Famicom	I-Application
after	O
the	O
release	O
of	O
Mega	B-Application
Man	I-Application
8	I-Application
,	O
which	O
preceded	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
on	O
the	O
two	O
32-bit	O
consoles	O
,	O
the	O
PlayStation	B-Device
and	O
Sega	B-Device
Saturn	I-Device
.	O
</s>
<s>
According	O
to	O
series	O
producer	O
Keiji	O
Inafune	O
,	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
was	O
intended	O
for	O
younger	O
players	O
who	O
still	O
owned	O
a	O
Super	B-Application
Famicom	I-Application
and	O
did	O
not	O
have	O
the	O
means	O
to	O
experience	O
Mega	B-Application
Man	I-Application
8	I-Application
on	O
one	O
of	O
the	O
newer	O
systems	O
.	O
</s>
<s>
Designer	O
Hideki	O
Ishikawa	O
recalled	O
the	O
development	O
of	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
as	O
"	O
one	O
big	O
party	O
"	O
.	O
</s>
<s>
Graphically	O
,	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
uses	O
many	O
of	O
the	O
same	O
two-dimensional	O
sprites	O
and	O
animations	O
as	O
Mega	B-Application
Man	I-Application
8	I-Application
.	O
</s>
<s>
Two	O
of	O
the	O
eight	O
Robot	B-Algorithm
Master	O
bosses	O
in	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
(	O
Tengu	O
Man	O
and	O
Astro	O
Man	O
)	O
are	O
borrowed	O
from	O
Mega	B-Application
Man	I-Application
8	I-Application
.	O
</s>
<s>
Iwamoto	O
originally	O
denoted	O
Ground	O
Man	O
as	O
"	O
Drill	O
Man	O
"	O
despite	O
there	O
already	O
being	O
a	O
Robot	B-Algorithm
Master	O
by	O
that	O
name	O
in	O
Mega	B-Application
Man	I-Application
4	I-Application
.	O
</s>
<s>
The	O
musical	O
score	O
for	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
was	O
composed	O
by	O
Akari	O
Kaida	O
(	O
credited	O
as	O
"	O
A	O
.	O
Kaida	O
"	O
)	O
,	O
Naoshi	O
Mizuta	O
(	O
credited	O
as	O
"	O
N	O
.	O
Mizuta	O
"	O
)	O
,	O
and	O
"	O
Kirikiri-chan	O
"	O
(	O
Toshihiko	O
Horiyama	O
)	O
.	O
</s>
<s>
Kaida	O
would	O
later	O
work	O
with	O
other	O
composers	O
in	O
the	O
Mega	O
Man	O
series	O
on	O
the	O
soundtrack	O
for	O
Mega	B-Application
Man	I-Application
10	I-Application
,	O
released	O
in	O
2010	O
.	O
</s>
<s>
Until	O
its	O
GBA	B-Device
re-release	O
,	O
it	O
was	O
one	O
of	O
the	O
few	O
Mega	O
Man	O
titles	O
not	O
localized	O
for	O
English-speaking	O
countries	O
.	O
</s>
<s>
The	O
company	O
commemorated	O
the	O
15th	O
anniversary	O
of	O
the	O
Mega	O
Man	O
franchise	O
with	O
the	O
GBA	B-Device
version	O
of	O
the	O
game	O
.	O
</s>
<s>
The	O
GBA	B-Device
port	O
has	O
received	O
generally	O
positive	O
critical	O
reviews	O
,	O
currently	O
holding	O
an	O
aggregate	O
score	O
of	O
79%	O
on	O
both	O
GameRankings	O
and	O
Metacritic	O
.	O
</s>
<s>
Most	O
critics	O
found	O
the	O
game	O
to	O
be	O
a	O
solid	O
yet	O
conventional	O
action-platformer	O
that	O
successfully	O
adheres	O
to	O
the	O
classic	O
Mega	O
Man	O
formula	O
.	O
</s>
<s>
Electronic	O
Gaming	O
Monthly	O
summarized	O
that	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
is	O
"	O
one	O
of	O
the	O
best	O
action	B-Application
games	I-Application
on	O
GBA	B-Device
"	O
and	O
"	O
a	O
great	O
,	O
if	O
slightly	O
derivative	O
,	O
platformer	O
"	O
with	O
plenty	O
of	O
replay	O
value	O
due	O
to	O
the	O
collectible	O
CDs	O
.	O
</s>
<s>
GamePro	O
was	O
pleased	O
with	O
the	O
game	O
's	O
fidelity	O
to	O
its	O
predecessors	O
when	O
compared	O
to	O
the	O
deviations	O
made	O
by	O
the	O
Mega	B-Application
Man	I-Application
Battle	I-Application
Network	I-Application
and	O
Mega	B-Application
Man	I-Application
Zero	I-Application
series	O
on	O
the	O
same	O
system	O
.	O
</s>
<s>
GameSpy	O
contrarily	O
criticized	O
its	O
lack	O
of	O
innovation	O
,	O
declaring	O
,	O
"	O
Anyone	O
that	O
has	O
n't	O
tried	O
a	O
Mega	O
Man	O
game	O
yet	O
would	O
be	O
better	O
advised	O
to	O
spend	O
$15	O
on	O
a	O
new	O
copy	O
of	O
Mega	B-Application
Man	I-Application
8	I-Application
on	O
the	O
PSOne	O
rather	O
than	O
paying	O
$30	O
for	O
an	O
inferior	O
retread	O
of	O
the	O
same	O
game	O
"	O
.	O
</s>
<s>
According	O
to	O
Famitsu	O
,	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
for	O
the	O
GBA	B-Device
sold	O
91,097	O
copies	O
in	O
Japan	O
between	O
its	O
release	O
date	O
and	O
the	O
week	O
of	O
December	O
23	O
,	O
2002	O
.	O
</s>
<s>
A	O
related	O
game	O
exclusive	O
to	O
Japan	O
titled	O
was	O
released	O
for	O
the	O
WonderSwan	B-Operating_System
handheld	B-Application
in	O
1999	O
.	O
</s>
<s>
As	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
was	O
released	O
directly	O
after	O
Mega	B-Application
Man	I-Application
8	I-Application
and	O
it	O
shares	O
plot	O
and	O
gameplay	O
characteristics	O
with	O
the	O
rest	O
of	O
the	O
numbered	O
titles	O
in	O
the	O
series	O
,	O
many	O
believed	O
it	O
to	O
be	O
the	O
ninth	O
main	O
game	O
in	O
the	O
series	O
;	O
however	O
,	O
the	O
actual	O
Mega	B-Application
Man	I-Application
9	I-Application
would	O
not	O
be	O
released	O
until	O
2008	O
.	O
</s>
<s>
Inafune	O
explained	O
in	O
an	O
interview	O
with	O
the	O
Brazilian	O
magazine	O
Nintendo	O
World	O
that	O
the	O
ninth	O
installment	O
follows	O
the	O
storyline	O
of	O
Mega	B-Application
Man	I-Application
8	I-Application
and	O
that	O
the	O
worlds	O
for	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
and	O
Mega	B-Application
Man	I-Application
9	I-Application
are	O
meant	O
to	O
coincide	O
with	O
one	O
another	O
,	O
as	O
evidenced	O
by	O
a	O
schematic	O
of	O
Bass	O
in	O
the	O
ending	O
of	O
the	O
game	O
.	O
</s>
<s>
In	O
2010	O
,	O
Bass	O
was	O
made	O
playable	O
via	O
downloadable	B-Protocol
content	I-Protocol
in	O
Mega	B-Application
Man	I-Application
10	I-Application
.	O
</s>
<s>
As	O
in	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
,	O
he	O
is	O
able	O
to	O
dash	O
,	O
fire	O
in	O
seven	O
directions	O
with	O
his	O
buster	O
,	O
and	O
fly	O
by	O
combining	O
with	O
Treble	O
.	O
</s>
<s>
Nintendo	B-Application
Power	I-Application
listed	O
Mega	B-Application
Man	I-Application
&	I-Application
Bass	I-Application
as	O
the	O
14th	O
best	O
GBA	B-Device
game	O
of	O
all	O
time	O
in	O
its	O
20th	O
anniversary	O
issue	O
in	O
2008	O
.	O
</s>
