<s>
is	O
a	O
party	O
video	O
game	O
developed	O
by	O
NDcube	O
and	O
published	O
by	O
Nintendo	O
for	O
the	B-Operating_System
Wii	I-Operating_System
.	O
</s>
<s>
The	O
ninth	O
main	O
installment	O
in	O
the	O
Mario	B-Application
Party	I-Application
series	O
,	O
it	O
was	O
announced	O
at	O
E3	O
2011	O
and	O
released	O
in	O
Europe	O
,	O
North	O
America	O
,	O
and	O
Australia	O
in	O
March	O
2012	O
,	O
followed	O
by	O
Japan	O
a	O
month	O
later	O
.	O
</s>
<s>
This	O
was	O
also	O
the	O
final	O
Mario	B-Application
game	O
to	O
be	O
released	O
on	O
the	B-Operating_System
Wii	I-Operating_System
.	O
</s>
<s>
Mario	B-Application
Party	I-Application
9	I-Application
was	O
the	O
second	O
and	O
last	O
game	O
in	O
the	O
series	O
released	O
for	O
the	B-Operating_System
Wii	I-Operating_System
,	O
and	O
was	O
followed	O
by	O
Mario	B-Application
Party	I-Application
:	I-Application
Island	I-Application
Tour	I-Application
for	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
in	O
2013	O
and	O
Mario	B-Application
Party	I-Application
10	I-Application
for	O
the	B-Operating_System
Wii	I-Operating_System
U	O
in	O
2015	O
.	O
</s>
<s>
Like	O
the	O
previous	O
Mario	B-Application
Party	I-Application
titles	O
,	O
two	O
to	O
four	O
players	O
move	O
around	O
a	O
virtual	O
board	O
and	O
play	O
minigames	O
.	O
</s>
<s>
The	O
number	O
of	O
spaces	O
the	O
player	O
moves	O
is	O
determined	O
by	O
a	O
roll	O
of	O
the	O
dice	B-Language
block	O
found	O
within	O
the	O
game	O
.	O
</s>
<s>
There	O
are	O
82	O
minigames	O
in	O
Mario	B-Application
Party	I-Application
9	I-Application
,	O
divided	O
into	O
five	O
categories	O
:	O
Free-for-all	O
,	O
1-vs.-Rivals	O
,	O
Bowser	O
Jr.	O
,	O
Boss	O
Battle	O
,	O
and	O
Extra	O
.	O
</s>
<s>
Mario	B-Application
Party	I-Application
9	I-Application
features	O
twelve	O
playable	O
characters	O
,	O
with	O
two	O
(	O
Shy	O
Guy	O
and	O
Kamek	O
)	O
being	O
unlockable	O
through	O
Solo	O
Mode	O
.	O
</s>
<s>
There	O
are	O
seven	O
boards	O
in	O
Mario	B-Application
Party	I-Application
9	I-Application
:	O
</s>
<s>
Mario	B-Application
Party	I-Application
9	I-Application
received	O
mixed	O
or	O
average	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
<s>
German	O
magazine	O
N-Zone	O
gave	O
Mario	B-Application
Party	I-Application
9	I-Application
a	O
75%	O
score	O
for	O
single	O
player	O
mode	O
,	O
and	O
85%	O
for	O
multiplayer	O
mode	O
.	O
</s>
<s>
Nintendo	B-Application
Power	I-Application
said	O
that	O
"	O
the	O
majority	O
of	O
the	O
game	O
's	O
82	O
activities	O
are	O
fun	O
"	O
,	O
while	O
commenting	O
that	O
"	O
some	O
may	O
be	O
discouraged	O
by	O
the	O
game	O
's	O
radical	O
changes	O
"	O
.	O
</s>
<s>
Like	O
previous	O
Mario	B-Application
Party	I-Application
games	O
,	O
IGN	O
strongly	O
criticized	O
the	O
luck-based	O
factor	O
of	O
the	O
game	O
.	O
</s>
<s>
GamesRadar	O
praised	O
Mario	B-Application
Party	I-Application
9	I-Application
for	O
being	O
balanced	O
,	O
but	O
criticized	O
the	O
predictability	O
of	O
the	O
boards	O
.	O
</s>
<s>
,	O
Mario	B-Application
Party	I-Application
9	I-Application
sold	O
2.24	O
million	O
copies	O
worldwide	O
.	O
</s>
