<s>
Alpha	B-Application
Mission	I-Application
,	O
known	O
as	O
in	O
Japan	O
,	O
is	O
a	O
vertically	O
scrolling	O
shooter	O
developed	O
by	O
SNK	O
and	O
released	O
as	O
an	O
arcade	B-Application
video	I-Application
game	I-Application
in	O
1985	O
by	O
Namco	O
in	O
Japan	O
and	O
Tradewest	O
in	O
North	O
America	O
.	O
</s>
<s>
The	O
arcade	B-Application
game	O
was	O
a	O
commercial	O
success	O
in	O
Japan	O
,	O
where	O
it	O
was	O
the	O
seventh	O
highest-grossing	O
table	O
arcade	B-Application
game	I-Application
of	I-Application
1986	I-Application
.	O
</s>
<s>
A	O
sequel	O
,	O
Alpha	B-Application
Mission	I-Application
II	I-Application
,	O
was	O
released	O
for	O
the	O
Neo	B-Application
Geo	I-Application
arcade	I-Application
system	O
in	O
1991	O
.	O
</s>
<s>
Alpha	B-Application
Mission	I-Application
is	O
a	O
one-player	O
scrolling	O
shooter	O
game	O
in	O
its	O
segregation	O
of	O
air-to-air	O
and	O
air-to-ground	O
weapons	O
.	O
</s>
<s>
Alpha	B-Application
Mission	I-Application
was	O
released	O
on	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
as	O
part	O
of	O
PSP	B-Operating_System
Minis	O
via	O
PlayStation	O
Store	O
in	O
2011	O
.	O
</s>
<s>
Alpha	B-Application
Mission	I-Application
was	O
also	O
released	O
on	O
the	O
Nintendo	B-Application
Switch	I-Application
in	O
the	O
Nintendo	B-Application
eShop	I-Application
on	O
25	O
October	O
2018	O
and	O
on	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
via	O
PlayStation	O
Store	O
on	O
18	O
July	O
2019	O
by	O
Hamster	O
Corporation	O
as	O
part	O
of	O
their	O
Arcade	B-Application
Archives	I-Application
series	O
.	O
</s>
<s>
The	O
game	O
is	O
also	O
included	O
on	O
SNK	B-Application
40th	I-Application
Anniversary	I-Application
Collection	I-Application
,	O
the	O
collection	O
has	O
both	O
the	O
original	O
arcade	B-Application
and	O
the	O
NES	O
version	O
.	O
</s>
<s>
In	O
Japan	O
,	O
Game	O
Machine	O
listed	O
ASO	B-Application
on	O
their	O
December	O
1	O
,	O
1985	O
issue	O
as	O
being	O
the	O
second	O
most-successful	O
table	O
arcade	B-Application
cabinet	O
of	O
the	O
month	O
.	O
</s>
<s>
It	O
was	O
later	O
listed	O
by	O
Game	O
Machine	O
as	O
Japan	O
's	O
fifth	O
highest-grossing	O
table	O
arcade	B-Application
game	O
during	O
the	O
first	O
half	O
of	O
1986	O
,	O
and	O
it	O
was	O
the	O
seventh	O
overall	O
highest-grossing	O
table	O
arcade	B-Application
game	I-Application
of	I-Application
1986	I-Application
.	O
</s>
