<s>
Up'n	B-Application
Down	I-Application
is	O
a	O
video	O
game	O
developed	O
and	O
published	O
by	O
Sega	O
.	O
</s>
<s>
It	O
was	O
first	O
released	O
in	O
1983	B-Application
as	O
an	O
arcade	O
game	O
,	O
then	O
later	O
ported	O
to	O
the	O
Atari	B-General_Concept
2600	I-General_Concept
,	O
ColecoVision	B-Device
,	O
Atari	B-Device
8-bit	I-Device
family	I-Device
,	O
and	O
Commodore	O
64	O
.	O
</s>
<s>
In	O
Up'n	B-Application
Down	I-Application
the	O
player	O
drives	O
a	O
car	O
forward	O
and	O
backward	O
along	O
a	O
branching	O
,	O
vertically	O
scrolling	O
track	O
,	O
collecting	O
flags	O
and	O
jumping	O
on	O
other	O
cars	O
to	O
destroy	O
them	O
.	O
</s>
<s>
Up'n	B-Application
Down	I-Application
is	O
a	O
vertically	O
scrolling	O
game	O
that	O
employs	O
a	O
pseudo-3D	O
perspective	O
.	O
</s>
<s>
Sega	O
released	O
a	O
port	O
for	O
the	O
Atari	B-General_Concept
2600	I-General_Concept
in	O
1984	O
with	O
jarring	O
background	O
music	O
.	O
</s>
<s>
In	O
Japan	O
,	O
Game	O
Machine	O
listed	O
Up'n	B-Application
Down	I-Application
on	O
their	O
November	O
1	O
,	O
1983	B-Application
issue	O
as	O
being	O
the	O
second	O
most-successful	O
new	O
table	O
arcade	O
unit	O
of	O
the	O
month	O
.	O
</s>
