<s>
Parallax	B-Device
is	O
a	O
shoot	O
'	O
em	O
up	O
video	O
game	O
developed	O
by	O
British	O
company	O
Sensible	O
Software	O
for	O
the	O
Commodore	O
64	O
.	O
</s>
<s>
The	O
game	O
was	O
named	O
after	O
its	O
primary	O
graphical	O
feature	O
,	O
parallax	B-Device
scrolling	O
,	O
which	O
gives	O
the	O
illusion	O
of	O
depth	O
to	O
side-scrolling	O
video	O
games	O
.	O
</s>
<s>
Parallax	B-Device
was	O
Sensible	O
Software	O
's	O
first	O
game	O
.	O
</s>
<s>
Noel	O
concluded	O
,	O
"	O
Although	O
it	O
's	O
not	O
particularly	O
deep	O
or	O
complex	O
,	O
Parallax	B-Device
and	O
its	O
arcadelike	O
graphics	O
present	O
an	O
entertaining	O
and	O
incredibly	O
challenging	O
puzzle.	O
"	O
</s>
<s>
The	O
Australian	O
Commodore	O
and	O
Amiga	O
Review	O
,	O
in	O
a	O
1990	O
roundup	O
of	O
shoot	O
'	O
em	O
up	O
games	O
,	O
wrote	O
that	O
Parallax	B-Device
"	O
has	O
n't	O
mellowed	O
with	O
age	O
and	O
still	O
impresses	O
as	O
much	O
as	O
it	O
did	O
then	O
"	O
.	O
</s>
<s>
Eurogamer	O
's	O
retrospective	O
review	O
from	O
2006	O
rated	O
it	O
7/10	O
stars	O
and	O
said	O
that	O
it	O
has	O
"	O
intriguing	O
gameplay	O
variety	O
"	O
and	O
"	O
neat	O
parallax	B-Device
effects	O
"	O
,	O
though	O
it	O
is	O
not	O
the	O
most	O
technically	O
advanced	O
Commodore	O
64	O
game	O
.	O
</s>
