<s>
Soul	B-Device
Bubbles	I-Device
is	O
a	O
puzzle	O
video	O
game	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
handheld	O
console	O
.	O
</s>
<s>
Bubbles	O
are	O
moved	O
by	O
being	O
blown	O
by	O
the	O
main	O
"	O
spirit	O
herder	O
"	O
character	O
based	O
on	O
stylus	O
strokes	O
on	O
the	O
DS	B-Device
touch	O
screen	O
.	O
</s>
<s>
The	O
player	O
plays	O
as	O
a	O
young	O
shaman	B-Protocol
apprentice	O
,	O
whose	O
duty	O
is	O
to	O
care	O
for	O
lost	O
souls	O
.	O
</s>
<s>
In	O
late	O
2008	O
,	O
a	O
demo	O
of	O
the	O
game	O
was	O
made	O
available	O
on	O
the	O
DS	B-Device
Download	O
Service	O
of	O
the	B-Operating_System
Wii	I-Operating_System
Nintendo	O
Channel	O
.	O
</s>
<s>
The	O
game	O
received	O
"	O
generally	O
favorable	O
reviews	O
"	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
<s>
N-Europe	O
described	O
it	O
as	O
a	O
"	O
wonderfully	O
calming	O
"	O
game	O
and	O
feels	O
like	O
the	O
"	O
title	O
the	O
DS	B-Device
was	O
built	O
for	O
"	O
.	O
</s>
