<s>
Alien	B-Application
Brigade	I-Application
is	O
a	O
horizontally-scrolling	O
rail	O
shooter	O
released	O
by	O
Atari	O
Corporation	O
in	O
1990	O
for	O
the	O
Atari	B-General_Concept
7800	I-General_Concept
.	O
</s>
<s>
Similar	O
in	O
style	O
to	O
Operation	B-Application
Wolf	I-Application
,	O
Alien	B-Application
Brigade	I-Application
tells	O
the	O
story	O
of	O
a	O
soldier	O
battling	O
with	O
alien	O
invaders	O
that	O
take	O
over	O
the	O
bodies	O
of	O
fallen	O
soldiers	O
.	O
</s>
<s>
Despite	O
being	O
released	O
late	O
in	O
the	O
Atari	B-General_Concept
7800	I-General_Concept
's	O
life	O
cycle	O
,	O
Atari	O
Corporation	O
made	O
more	O
efforts	O
to	O
market	O
the	O
game	O
than	O
it	O
had	O
with	O
other	O
Atari	B-General_Concept
7800	I-General_Concept
titles	O
.	O
</s>
<s>
The	O
game	O
had	O
its	O
own	O
print	O
advertisement	O
and	O
was	O
referenced	O
in	O
Atari	O
's	O
1990	O
shooter	O
,	O
Planet	O
Smashers	O
(	O
Alien	B-Application
Brigade	I-Application
would	O
return	O
the	O
favor	O
by	O
advertising	O
Planet	O
Smashers	O
)	O
.	O
</s>
<s>
Alien	B-Application
Brigade	I-Application
is	O
144K	O
in	O
size	O
,	O
making	O
it	O
one	O
of	O
the	O
largest	O
commercially	O
released	O
Atari	B-General_Concept
7800	I-General_Concept
games	O
.	O
</s>
<s>
Alien	B-Application
Brigade	I-Application
can	O
either	O
be	O
played	O
with	O
the	O
Atari	B-General_Concept
7800	I-General_Concept
joystick	B-Device
or	O
with	O
an	O
Atari	O
light	O
gun	O
.	O
</s>
<s>
Alien	B-Application
Brigade	I-Application
was	O
reviewed	O
in	O
the	O
September	O
1991	O
issue	O
of	O
Atari	O
's	O
own	O
Atari	O
Explorer	O
magazine	O
.	O
</s>
<s>
Funkmaster	O
V	O
of	O
Wrestling	O
With	O
Ghosts	O
reviewed	O
the	O
game	O
on	O
Atari	B-General_Concept
7800	I-General_Concept
Forever	O
and	O
gave	O
it	O
a	O
4	O
out	O
of	O
5	O
,	O
and	O
ranks	O
it	O
as	O
the	O
10th	O
best	O
officially	O
licensed	O
game	O
on	O
the	O
system	O
.	O
</s>
