<s>
Sudoku	B-Application
Mania	I-Application
is	O
a	O
2006	O
sudoku	O
puzzle	O
game	O
developed	O
by	O
Frontline	O
Studios	O
and	O
published	O
by	O
UFO	O
Interactive	O
Games	O
.	O
</s>
<s>
Released	O
on	O
June	O
30	O
,	O
2006	O
,	O
Sudoku	B-Application
Mania	I-Application
received	O
"	O
generally	O
unfavorable	O
"	O
reviews	O
from	O
critics	O
,	O
having	O
a	O
score	O
of	O
25	O
out	O
of	O
100	O
on	O
review	O
aggregator	O
Metacritic	O
.	O
</s>
<s>
Sudoku	B-Application
Mania	I-Application
gameplay	O
is	O
identical	O
to	O
that	O
of	O
the	O
number-placement	O
puzzle	O
sudoku	O
;	O
players	O
have	O
to	O
fill	O
a	O
9×9	O
grid	O
with	O
numbers	O
;	O
however	O
,	O
no	O
line	O
or	O
3×3	O
box	O
can	O
feature	O
multiple	O
of	O
the	O
same	O
number	O
.	O
</s>
<s>
The	O
game	O
is	O
primarily	O
controlled	O
using	O
the	O
Nintendo	B-Device
DS	I-Device
 '	O
d-pad	B-Device
.	O
</s>
<s>
Sudoku	B-Application
Mania	I-Application
was	O
developed	O
by	O
the	O
Frontline	O
Studios	O
,	O
located	O
in	O
Poland	O
and	O
the	O
United	O
States	O
.	O
</s>
<s>
Sudoku	B-Application
Mania	I-Application
was	O
originally	O
intended	O
to	O
release	O
on	O
June	O
23	O
,	O
2006	O
,	O
in	O
North	O
America	O
;	O
however	O
,	O
it	O
was	O
delayed	O
to	O
June	O
30	O
.	O
</s>
<s>
Sudoku	B-Application
Mania	I-Application
received	O
"	O
generally	O
unfavorable	O
"	O
reviews	O
,	O
according	O
to	O
review	O
aggregator	O
Metacritic	O
.	O
</s>
<s>
Critics	O
criticized	O
the	O
game	O
's	O
controls	O
;	O
GameZone	O
stated	O
that	O
the	O
controls	O
were	O
"	O
obtuse	O
"	O
and	O
"	O
counteractive	O
"	O
to	O
the	O
game	O
's	O
marketing	O
,	O
which	O
advertised	O
that	O
the	O
game	O
had	O
an	O
"	O
easy-to-use	O
"	O
touchscreen	O
control	O
scheme	O
;	O
IGN	O
called	O
the	O
game	O
's	O
user	B-Application
interface	I-Application
"	O
simplistic	O
"	O
and	O
,	O
when	O
in	O
comparison	O
with	O
other	O
sudoku	O
games	O
on	O
the	O
Nintendo	B-Device
DS	I-Device
,	O
"	O
disappointing	O
"	O
.	O
</s>
<s>
Chris	O
Oder	O
,	O
in	O
a	O
review	O
for	O
GameZone	O
,	O
called	O
Sudoku	B-Application
Mania	I-Application
a	O
"	O
fad	O
cash-in	O
"	O
,	O
stating	O
that	O
there	O
are	O
better	O
alternatives	O
to	O
the	O
game	O
on	O
the	O
Nintendo	B-Device
DS	I-Device
,	O
even	O
if	O
players	O
are	O
fans	O
of	O
sudoku	O
.	O
</s>
<s>
Oder	O
rated	O
the	O
game	O
's	O
gameplay	O
3.5/10	O
,	O
stating	O
that	O
Sudoku	B-Application
Mania	I-Application
was	O
one	O
of	O
the	O
few	O
times	O
where	O
a	O
developer	O
had	O
messed-up	O
a	O
sudoku	O
video	O
game	O
.	O
</s>
<s>
Oder	O
criticized	O
the	O
graphics	O
due	O
to	O
the	O
game	O
's	O
background	O
and	O
called	O
the	O
game	O
's	O
soundtrack	O
"	O
awful	O
"	O
,	O
and	O
suggested	O
that	O
players	O
should	O
play	O
Sudoku	B-Application
Mania	I-Application
with	O
volume	O
turned	O
off	O
.	O
</s>
<s>
Craig	O
Harris	O
of	O
IGN	O
stated	O
that	O
,	O
even	O
if	O
it	O
was	O
the	O
only	O
sudoku	O
game	O
on	O
the	O
Nintendo	B-Device
DS	I-Device
,	O
it	O
'd	O
be	O
hard	O
to	O
recommend	O
Sudoku	B-Application
Mania	I-Application
,	O
stating	O
that	O
players	O
should	O
"	O
stock-up	O
"	O
on	O
paperback	O
versions	O
of	O
sudoku	O
,	O
rather	O
than	O
playing	O
Sudoku	B-Application
Mania	I-Application
.	O
</s>
<s>
Harris	O
called	O
the	O
game	O
even	O
worse	O
when	O
in	O
comparison	O
with	O
other	O
sudoku	O
games	O
on	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
Gracie	O
Leach	O
of	O
AllGame	O
noted	O
how	O
Sudoku	B-Application
Mania	I-Application
has	O
similarities	O
with	O
Hudson	O
Soft	O
's	O
Sudoku	B-Device
Gridmaster	I-Device
,	O
another	O
sudoku	O
puzzle	O
game	O
on	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
