<s>
is	O
a	O
platform	O
video	O
game	O
developed	O
by	O
Tose	O
and	O
published	O
by	O
Nintendo	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
As	O
with	O
the	O
other	O
games	O
in	O
the	O
series	O
,	O
Densetsu	B-Application
no	I-Application
Stafy	I-Application
4	I-Application
features	O
Stafy	O
,	O
known	O
as	O
Starfy	O
in	O
Western	O
regions	O
,	O
as	O
the	O
main	O
character	O
.	O
</s>
<s>
Starfy	O
dozed	O
off	O
,	O
and	O
Moe	O
told	O
him	O
to	O
listen	O
,	O
then	O
Starly	O
petted	O
Moe	O
and	O
talked	O
to	O
him	O
about	O
his	O
love	O
,	O
Ruby	O
the	O
zebra	O
turkeyfish	O
,	O
while	O
Starfy	O
sat	O
and	O
played	O
with	O
his	O
handheld	O
game	O
console	O
that	O
resembles	O
the	O
original	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
Gameplay	O
in	O
Densetsu	B-Application
no	I-Application
Stafy	I-Application
4	I-Application
is	O
quite	O
similar	O
to	O
the	O
previous	O
games	O
in	O
the	O
series	O
.	O
</s>
<s>
New	O
features	O
were	O
added	O
in	O
this	O
game	O
that	O
make	O
use	O
of	O
the	O
Nintendo	B-Device
DS	I-Device
 '	O
advanced	O
hardware	O
.	O
</s>
<s>
The	O
visuals	O
are	O
still	O
2-D	O
,	O
albeit	O
with	O
completely	O
redrawn	O
sprites	O
,	O
while	O
the	O
backgrounds	O
are	O
3-D	O
.	O
Densetsu	B-Application
no	I-Application
Stafy	I-Application
4	I-Application
takes	O
advantage	O
of	O
the	O
dual	O
screens	O
,	O
using	O
them	O
to	O
show	O
both	O
the	O
main	O
game	O
and	O
map	O
of	O
the	O
level	O
simultaneously	O
,	O
while	O
it	O
uses	O
the	O
touchscreen	B-Device
to	O
play	O
the	O
bonus	O
stages	O
,	O
scroll	O
the	O
map	O
,	O
interact	O
in	O
the	O
title	O
screen	O
and	O
navigate	O
menus	O
.	O
</s>
<s>
In	O
order	O
to	O
give	O
fans	O
a	O
chance	O
to	O
contribute	O
to	O
the	O
development	O
of	O
Densetsu	B-Application
no	I-Application
Stafy	I-Application
4	I-Application
,	O
Nintendo	O
and	O
Tose	O
created	O
a	O
costume	O
contest	O
,	O
and	O
gave	O
fans	O
a	O
picture	O
of	O
Starfy	O
(	O
in	O
PDF	B-Application
format	I-Application
)	O
to	O
print	O
,	O
color	O
,	O
and	O
send	O
in	O
.	O
</s>
<s>
The	O
winning	O
costumes	O
also	O
appear	O
on	O
the	O
official	O
Densetsu	B-Application
no	I-Application
Stafy	I-Application
4	I-Application
website	O
.	O
</s>
<s>
Most	O
other	O
artworks	O
were	O
featured	O
in	O
the	O
first	O
credits	O
sequence	O
of	O
Densetsu	B-Application
no	I-Application
Stafy	I-Application
4	I-Application
.	O
</s>
<s>
Densetsu	B-Application
no	I-Application
Stafy	I-Application
4	I-Application
was	O
the	O
fourth	O
best-selling	O
game	O
in	O
Japan	O
during	O
its	O
week	O
of	O
release	O
at	O
47,971	O
copies	O
.	O
</s>
