<s>
Personal	B-Device
Trainer	I-Device
:	I-Device
Walking	I-Device
is	O
a	O
2008	O
exergaming	O
application	O
developed	O
by	O
Nintendo	O
Network	O
Service	O
Development	O
(	O
Nintendo	O
NSD	O
)	O
and	O
Creatures	O
Inc	O
.	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
It	O
is	O
one	O
of	O
only	O
five	O
Nintendo	B-Device
DS	I-Device
titles	O
to	O
support	O
Mii	O
characters	O
,	O
three	O
of	O
which	O
are	O
Japan	O
exclusives	O
.	O
</s>
<s>
Personal	B-Device
Trainer	I-Device
:	I-Device
Walking	I-Device
allows	O
up	O
to	O
four	O
users	O
to	O
track	O
their	O
walking	O
,	O
jogging	O
or	O
running	O
activities	O
through	O
a	O
series	O
of	O
graphs	O
,	O
charts	O
and	O
statistics	O
,	O
as	O
well	O
as	O
set	O
goals	O
for	O
themselves	O
.	O
</s>
<s>
The	O
game	O
uses	O
Miis	O
to	O
track	O
each	O
user	O
's	O
progress	O
,	O
and	O
allows	O
users	O
to	O
either	O
create	O
a	O
Mii	O
in-game	O
(	O
A	O
first	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
)	O
,	O
or	O
wirelessly	O
transfer	O
an	O
existing	O
Mii	O
from	O
a	O
Wii	B-Operating_System
console	I-Operating_System
's	O
Mii	O
Channel	O
to	O
their	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
