<s>
Space	B-Application
Storm	I-Application
–	O
a	O
side-scrolling	O
shooting	O
video	O
game	O
of	O
the	O
Shot	O
‘	O
em	O
up	O
genre	O
developed	O
by	O
the	O
American	O
studio	O
DAVA	O
Consulting	O
LLC	O
for	O
the	O
iPhone	B-Device
platform	O
in	O
2008	O
.	O
</s>
<s>
Since	O
its	O
release	O
for	O
Apple	O
's	O
iPhone	B-Device
,	O
iPad	B-Device
and	O
iPod	B-Device
Touch	I-Device
devices	O
,	O
over	O
a	O
million	O
of	O
copies	O
of	O
the	O
game	O
have	O
been	O
purchased	O
.	O
</s>
<s>
The	O
game	O
provides	O
with	O
joystick	B-Device
control	O
of	O
a	O
space	O
ship	O
,	O
without	O
blocking	O
too	O
much	O
of	O
the	O
screen	O
.	O
</s>
<s>
The	O
virtual	O
joystick	B-Device
is	O
made	O
in	O
the	O
form	O
of	O
a	O
Virtual	O
Analog	B-Device
Stick	I-Device
located	O
in	O
the	O
lower	O
left	O
part	O
of	O
the	O
screen	O
and	O
does	O
n't	O
disturb	O
a	O
player	O
when	O
flying	O
around	O
.	O
</s>
<s>
All	O
of	O
the	O
control	O
options	O
suffer	O
from	O
the	O
lack	O
of	O
tactile	O
feedback	O
of	O
having	O
a	O
real	O
control	B-Device
stick	I-Device
or	O
pad	O
under	O
the	O
player	O
's	O
thumb	O
.	O
</s>
