<s>
Alien	B-Application
Carnage	I-Application
,	O
originally	O
released	O
as	O
Halloween	B-Application
Harry	I-Application
,	O
is	O
a	O
side-scrolling	O
platform	O
game	O
developed	O
by	O
Interactive	O
Binary	O
Illusions	O
and	O
SubZero	O
Software	O
,	O
and	O
distributed	O
by	O
Apogee	O
Software	O
.	O
</s>
<s>
The	O
game	O
features	O
256-colour	O
VGA	B-Protocol
graphics	I-Protocol
and	O
background	O
music	O
in	O
MOD	O
format	O
.	O
</s>
<s>
Alien	B-Application
Carnage	I-Application
is	O
composed	O
of	O
four	O
episodes	O
.	O
</s>
<s>
The	O
first	O
episode	O
was	O
released	O
as	O
shareware	B-License
,	O
and	O
the	O
rest	O
were	O
distributed	O
commercially	O
.	O
</s>
<s>
In	O
May	O
2007	O
,	O
John	O
Passfield	O
and	O
3D	O
Realms	O
released	O
Alien	B-Application
Carnage	I-Application
as	O
freeware	O
.	O
</s>
<s>
The	O
cartoon-style	O
game	O
features	O
agent	O
Halloween	B-Application
Harry	I-Application
,	O
who	O
has	O
to	O
save	O
the	O
world	O
from	O
aliens	O
that	O
want	O
to	O
take	O
control	O
of	O
Earth	O
by	O
turning	O
its	O
population	O
into	O
green-skinned	O
zombies	B-Application
.	O
</s>
<s>
Some	O
of	O
the	O
enemies	O
reference	O
Aliens	O
,	O
Gremlins	B-Language
,	O
and	O
Elvis	O
Presley	O
.	O
</s>
<s>
In	O
the	O
game	O
,	O
the	O
player	O
has	O
to	O
shoot	O
zombies	B-Application
and	O
aliens	O
with	O
his	O
flamethrower	O
and	O
other	O
weapons	O
,	O
rescuing	O
hostages	O
along	O
the	O
way	O
.	O
</s>
<s>
Instead	O
of	O
jumping	O
,	O
Harry	O
uses	O
a	O
jetpack	B-Application
to	O
reach	O
higher	O
platforms	O
.	O
</s>
<s>
His	O
jetpack	B-Application
shares	O
ammo	O
with	O
his	O
flamethrower	O
,	O
which	O
means	O
it	O
is	O
best	O
for	O
the	O
player	O
to	O
use	O
both	O
sparingly	O
.	O
</s>
<s>
Alien	B-Application
Carnage	I-Application
was	O
originally	O
titled	O
Halloween	B-Application
Harry	I-Application
,	O
and	O
was	O
released	O
under	O
this	O
title	O
for	O
its	O
first	O
two	O
versions	O
.	O
</s>
<s>
After	O
v1.2	O
,	O
Apogee	O
suggested	O
to	O
the	O
developers	O
that	O
the	O
title	O
should	O
be	O
changed	O
because	O
it	O
might	O
be	O
viewed	O
as	O
a	O
seasonal	O
Halloween-themed	O
game	O
,	O
limiting	O
sales	O
during	O
the	O
rest	O
of	O
the	O
year	O
.	O
</s>
<s>
They	O
renamed	O
it	O
to	O
Alien	B-Application
Carnage	I-Application
,	O
and	O
it	O
was	O
re-released	O
as	O
"	O
Alien	B-Application
Carnage	I-Application
v1.0	O
"	O
in	O
1994	O
.	O
</s>
<s>
Along	O
with	O
the	O
name	O
change	O
,	O
missions	O
one	O
and	O
three	O
were	O
switched	O
,	O
and	O
with	O
Apogee	O
's	O
shareware	B-License
model	O
,	O
this	O
meant	O
that	O
half	O
of	O
the	O
game	O
could	O
be	O
played	O
for	O
free	O
.	O
</s>
<s>
Halloween	B-Application
Harry	I-Application
was	O
originally	O
written	O
and	O
released	O
commercially	O
in	O
1985	O
by	O
John	O
Passfield	O
as	O
a	O
game	O
for	O
the	O
Australian	O
Microbee	B-Device
computer	O
system	O
.	O
</s>
<s>
In	O
1996	O
a	O
sequel	O
called	O
Zombie	B-Application
Wars	O
was	O
released	O
.	O
</s>
<s>
Gee-Whiz	O
Entertainment	O
(	O
formerly	O
Interactive	O
Binary	O
Illusions	O
)	O
made	O
plans	O
for	O
an	O
animated	O
cartoon	O
based	O
on	O
the	O
third	O
,	O
future	O
Alien	B-Application
Carnage	I-Application
game	O
.	O
</s>
<s>
The	O
cartoon	O
was	O
to	O
include	O
Harry	O
and	O
Diane	O
,	O
the	O
NPCs	O
,	O
as	O
well	O
as	O
probably	O
recurring	O
alien	O
and	O
zombie	B-Application
characters	O
.	O
</s>
<s>
The	O
script	O
was	O
roughly	O
based	O
on	O
the	O
script	O
for	O
Zombie	B-Application
Wars	O
,	O
but	O
both	O
the	O
game	O
and	O
the	O
cartoon	O
were	O
never	O
made	O
.	O
</s>
