<s>
Blitz	B-Application
(	O
originally	O
Vic	O
New	O
York	O
,	O
then	O
later	O
New	O
York	O
Blitz	B-Application
)	O
is	O
an	O
action	B-Application
game	I-Application
published	O
by	O
Commodore	O
for	O
its	O
VIC-20	B-Device
home	O
computer	O
in	O
1981	O
.	O
</s>
<s>
The	O
game	O
is	O
based	O
on	O
the	O
1977	O
arcade	O
game	O
Canyon	B-Application
Bomber	I-Application
from	O
Atari	O
,	O
Inc.	O
,	O
replacing	O
the	O
goal	O
of	O
clearing	O
boulders	O
with	O
bombing	O
closely	O
packed	O
skyscrapers	O
.	O
</s>
<s>
Blitz	B-Application
was	O
followed	O
by	O
Blitz-64	O
for	O
the	O
Commodore	O
64	O
and	O
Blitz-16	O
for	O
the	O
Commodore	B-Operating_System
16	I-Operating_System
.	O
</s>
<s>
The	O
game	O
was	O
prompted	O
by	O
a	O
verbal	O
description	O
of	O
the	O
arcade	O
game	O
Canyon	B-Application
Bomber	I-Application
(	O
Atari	O
,	O
Inc.	O
,	O
1977	O
)	O
.	O
</s>
<s>
The	O
change	O
from	O
a	O
canyon	O
filled	O
with	O
rock	O
pillars	O
to	O
a	O
city	O
of	O
skyscrapers	O
was	O
copied	O
by	O
later	O
clones	O
including	O
Blitz	B-Application
(	O
ZX	B-Operating_System
Spectrum	I-Operating_System
)	O
,	O
City	O
Bomber	O
(	O
C64	O
)	O
,	O
and	O
City	O
Lander	O
(	O
ZX81	O
)	O
.	O
</s>
<s>
Taylor	O
later	O
produced	O
versions	O
for	O
the	O
Commodore	O
64	O
,	O
Commodore	B-Operating_System
16	I-Operating_System
,	O
and	O
Epson	B-Device
HX-20	I-Device
portable	O
computer	O
.	O
</s>
<s>
Mastertronic	O
later	O
sold	O
the	O
game	O
as	O
the	O
budget-priced	O
New	O
York	O
Blitz	B-Application
.	O
</s>
<s>
Jeff	O
Minter	O
wrote	O
a	O
1982	O
ZX	B-Operating_System
Spectrum	I-Operating_System
game	O
inspired	O
by	O
Blitz	B-Application
called	O
Bomber	O
(	O
also	O
published	O
as	O
City	O
Bomber	O
)	O
.	O
</s>
