<s>
Top	B-Application
Gun	I-Application
is	O
a	O
1986	O
combat	O
flight	O
simulation	O
game	O
based	O
on	O
the	O
film	B-Application
of	I-Application
the	I-Application
same	I-Application
name	I-Application
.	O
</s>
<s>
In	O
the	O
United	O
Kingdom	O
,	O
it	O
was	O
released	O
for	O
Amstrad	B-Device
CPC	I-Device
,	O
Commodore	O
64	O
,	O
and	O
ZX	B-Operating_System
Spectrum	I-Operating_System
in	O
December	O
1986	O
.	O
</s>
<s>
The	O
following	O
year	O
,	O
it	O
was	O
released	O
for	O
Atari	B-Device
ST	I-Device
.	O
</s>
<s>
In	O
1989	O
,	O
it	O
was	O
published	O
by	O
The	O
Hit	O
Squad	O
as	O
a	O
budget	O
re-release	O
for	O
ZX	B-Operating_System
Spectrum	I-Operating_System
and	O
Commodore	O
64	O
.	O
</s>
<s>
Top	B-Application
Gun	I-Application
is	O
a	O
combat	O
flight	O
simulation	O
game	O
.	O
</s>
<s>
Top	B-Application
Gun	I-Application
includes	O
a	O
two-player	O
mode	O
in	O
which	O
both	O
players	O
receive	O
three	O
planes	O
.	O
</s>
<s>
Mike	O
Roberts	O
of	O
Computer	O
Gamer	O
stated	O
that	O
Top	B-Application
Gun	I-Application
and	O
Ace	B-Application
were	O
the	O
best	O
flight	O
games	O
he	O
had	O
ever	O
played	O
up	O
to	O
that	O
point	O
.	O
</s>
<s>
Nick	O
Roberts	O
reviewed	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
re-release	O
for	O
Crash	O
.	O
</s>
<s>
Roberts	O
stated	O
that	O
the	O
game	O
was	O
better	O
with	O
two	O
players	O
,	O
and	O
thought	O
that	O
Top	B-Application
Gun	I-Application
is	O
more	O
for	O
simulation	O
fans	O
rather	O
than	O
for	O
fans	O
of	O
the	O
film	O
.	O
</s>
<s>
In	O
the	O
US	O
,	O
Top	B-Application
Gun	I-Application
was	O
a	O
commercial	O
hit	O
,	O
with	O
sales	O
above	O
500,000	O
units	O
by	O
1989	O
.	O
</s>
