<s>
Demon	B-Application
's	I-Application
World	I-Application
is	O
a	O
1989	O
run	O
and	O
gun	O
arcade	O
video	O
game	O
originally	O
developed	O
by	O
Toaplan	O
and	O
published	O
in	O
Japan	O
by	O
Taito	O
and	O
in	O
North	O
America	O
by	O
Catalina	O
Games	O
.	O
</s>
<s>
In	O
the	O
game	O
,	O
players	O
assume	O
the	O
role	O
of	O
two	O
ghost	O
hunters	O
to	O
fight	O
against	O
several	O
ghosts	B-Application
and	O
monsters	B-Application
that	O
were	O
unleashed	O
upon	O
Earth	O
by	O
the	O
titular	O
demon	B-Operating_System
king	O
.	O
</s>
<s>
Demon	B-Application
's	I-Application
World	I-Application
was	O
met	O
with	O
mixed	O
response	O
from	O
critics	O
who	O
reviewed	O
the	O
PC	O
Engine	O
Super	O
CD-ROM²	O
version	O
as	O
an	O
import	O
title	O
despite	O
being	O
exclusive	O
to	O
Japan	O
.	O
</s>
<s>
Demon	B-Application
's	I-Application
World	I-Application
is	O
a	O
horror-themed	O
horizontally-scrolling	O
run	O
and	O
gun	O
game	O
where	O
players	O
assume	O
the	O
role	O
of	O
two	O
ghost	O
hunters	O
through	O
ten	O
increasingly	O
difficult	O
linear	O
autoscrolling	O
stages	O
across	O
various	O
locations	O
,	O
some	O
of	O
which	O
have	O
a	O
boss	O
at	O
the	O
end	O
that	O
must	O
be	O
fought	O
before	O
progressing	O
any	O
further	O
in	O
an	O
effort	O
to	O
defeat	O
several	O
ghosts	B-Application
and	O
monsters	B-Application
that	O
were	O
unleashed	O
upon	O
Earth	O
by	O
the	O
titular	O
demon	B-Operating_System
king	O
as	O
the	O
main	O
objective	O
.	O
</s>
<s>
The	O
player	O
characters	O
are	O
armed	O
with	O
a	O
gun	O
complete	O
with	O
energy	O
pack	O
reminiscent	O
to	O
the	O
Ghostbusters	O
franchise	O
to	O
shoot	O
various	O
ghosts	B-Application
and	O
monsters	B-Application
that	O
infest	O
each	O
stage	O
,	O
though	O
players	O
can	O
also	O
defeat	O
enemies	O
by	O
jumping	O
on	O
them	O
,	O
in	O
addition	O
of	O
performing	O
a	O
double	O
jump	O
to	O
move	O
across	O
platforms	O
as	O
well	O
.	O
</s>
<s>
Along	O
the	O
way	O
,	O
players	O
can	O
collect	O
multiple	O
a	O
weapon	O
power-up	O
to	O
change	O
their	O
gun	O
to	O
fire	O
lasers	O
,	O
bombs	B-Device
or	O
a	O
spread	O
shot	O
.	O
</s>
<s>
The	O
game	O
then	O
changes	O
course	O
,	O
moving	O
to	O
a	O
ghostly	O
pirate	O
ship	O
and	O
then	O
the	O
haunted	O
American	O
Old	O
West	O
,	O
featuring	O
a	O
ghost	B-Application
town	I-Application
and	O
a	O
canyon	O
inhabited	O
by	O
traditional	O
ghosts	B-Application
and	O
monsters	B-Application
from	O
western	O
culture	O
such	O
as	O
Frankenstein	B-Application
's	I-Application
monster	I-Application
,	O
Dracula	B-Application
,	O
and	O
even	O
Jason	O
Voorhees-style	O
masked	O
monsters	B-Application
.	O
</s>
<s>
Demon	B-Application
's	I-Application
World	I-Application
uses	O
a	O
checkpoint	O
in	O
which	O
a	O
downed	O
single	O
player	O
will	O
start	O
off	O
at	O
the	O
beginning	O
of	O
the	O
checkpoint	O
they	O
managed	O
to	O
reach	O
before	O
dying	O
.	O
</s>
<s>
Getting	O
hit	O
by	O
enemy	O
fire	O
,	O
colliding	O
against	O
certain	O
stage	O
obstacles	O
,	O
falling	O
off	O
the	O
stage	O
or	O
running	O
against	O
any	O
enemy	O
will	O
result	O
in	O
losing	O
a	O
life	O
and	O
once	O
all	O
lives	O
are	O
lost	O
,	O
the	O
game	B-Application
is	I-Application
over	I-Application
unless	O
the	O
players	O
insert	O
more	O
credits	O
into	O
the	O
arcade	O
machine	O
to	O
continue	O
playing	O
.	O
</s>
<s>
Demon	B-Application
's	I-Application
World	I-Application
was	O
released	O
on	O
arcades	O
worldwide	O
in	O
1989	O
by	O
Taito	O
in	O
Japan	O
as	O
Horror	B-Application
Story	I-Application
,	O
Catalina	O
Games	O
in	O
North	O
America	O
and	O
Toaplan	O
across	O
other	O
regions	O
.	O
</s>
<s>
On	O
26	O
February	O
1993	O
,	O
Demon	B-Application
's	I-Application
World	I-Application
was	O
ported	O
to	O
the	O
PC	O
Engine	O
Super	O
CD-ROM²	O
by	O
NEC	O
Avenue	O
under	O
its	O
original	O
Japanese	O
title	O
(	O
Horror	B-Application
Story	I-Application
)	O
and	O
published	O
exclusively	O
in	O
Japan	O
,	O
featuring	O
an	O
arranged	O
soundtrack	O
using	O
Redbook	O
CD	O
Audio	O
.	O
</s>
<s>
In	O
Japan	O
,	O
Game	O
Machine	O
listed	O
Demon	B-Application
's	I-Application
World	I-Application
on	O
their	O
August	O
15	O
,	O
1989	O
issue	O
as	O
being	O
the	O
twenty-second	O
most-popular	O
arcade	O
game	O
at	O
the	O
time	O
.	O
</s>
<s>
Demon	B-Application
's	I-Application
World	I-Application
has	O
been	O
met	O
with	O
mixed	O
critical	O
reception	O
since	O
its	O
PC	O
Engine	O
Super	O
CD-ROM²	O
release	O
as	O
Horror	B-Application
Story	I-Application
from	O
critics	O
who	O
reviewed	O
it	O
as	O
an	O
import	O
title	O
.	O
</s>
