<s>
is	O
a	O
video	O
game	O
by	O
Bandai	O
on	O
the	O
PlayStation	B-Device
,	O
released	O
in	O
1999	O
,	O
about	O
the	O
Digimon	O
virtual	O
pets	O
.	O
</s>
<s>
It	O
was	O
followed	O
by	O
various	O
sequels	O
released	O
for	O
the	O
PlayStation	B-Device
and	O
other	O
platforms	O
.	O
</s>
<s>
He	O
must	O
train	O
his	O
Digimon	O
and	O
battle	O
his	O
way	O
through	O
all	O
of	O
Digimon	B-Application
World	I-Application
until	O
the	O
once	O
sparsely	O
populated	O
city	O
is	O
flourishing	O
with	O
different	O
Digimon	O
from	O
all	O
of	O
Digimon	B-Application
World	I-Application
.	O
</s>
<s>
He	O
must	O
eventually	O
go	O
to	O
Infinity	O
Mountain	O
(	O
the	O
final	O
location	O
)	O
to	O
confront	O
the	O
antagonist	O
,	O
Analogman	B-Application
,	O
and	O
the	O
mega	O
Machinedramon	O
,	O
and	O
save	O
the	O
Digital	O
World	O
from	O
destruction	O
.	O
</s>
<s>
Developer	O
and	O
publisher	O
Bandai	O
(	O
now	O
Bandai	O
Namco	O
Entertainment	O
)	O
used	O
an	O
extensive	O
marketing	O
campaign	O
to	O
compete	O
with	O
Nintendo	O
's	O
Pokémon	B-Application
media	O
franchise	O
,	O
specifically	O
the	O
video	O
games	O
Pokémon	B-Application
Red	I-Application
and	I-Application
Blue	I-Application
.	O
</s>
<s>
The	O
game	O
was	O
officially	O
announced	O
in	O
conjunction	O
with	O
Digimon	B-Device
World	I-Device
2	I-Device
in	O
May	O
2000	O
,	O
before	O
either	O
's	O
release	O
.	O
</s>
<s>
Digimon	B-Application
World	I-Application
received	O
a	O
23	O
out	O
of	O
40	O
total	O
score	O
from	O
editors	O
of	O
Japanese	O
Weekly	O
Famitsu	O
magazine	O
,	O
and	O
went	O
on	O
to	O
sell	O
approximately	O
250,000	O
copies	O
in	O
the	O
region	O
by	O
February	O
2000	O
.	O
</s>
<s>
The	O
English	O
version	O
sold	O
enough	O
copies	O
to	O
qualify	O
as	O
a	O
Greatest	B-Device
Hits	I-Device
title	O
in	O
North	O
America	O
,	O
and	O
Platinum	O
Range	O
in	O
Europe	O
,	O
but	O
received	O
mixed	O
reviews	O
from	O
critics	O
,	O
earning	O
a	O
52.55	O
%	O
average	O
on	O
GameRankings	O
.	O
</s>
<s>
GameSpot	O
's	O
Miguel	O
Lopez	O
likewise	O
stated	O
that	O
"	O
Digimon	B-Application
World	I-Application
is	O
n't	O
for	O
everyone	O
–	O
only	O
dedicated	O
Digimon	O
fans	O
or	O
fans	O
of	O
the	O
monster-raising	O
genre	O
need	O
apply	O
,	O
"	O
but	O
found	O
the	O
graphics	O
pleasing	O
,	O
declaring	O
that	O
"	O
despite	O
its	O
disassociating	O
play	O
focus	O
,	O
no	O
one	O
can	O
deny	O
that	O
Digimon	B-Application
World	I-Application
is	O
a	O
nice-looking	O
game.	O
"	O
</s>
<s>
The	O
game	O
was	O
followed	O
by	O
various	O
sequels	O
released	O
for	O
the	O
PlayStation	B-Device
and	O
other	O
platforms	O
,	O
though	O
they	O
do	O
not	O
retain	O
all	O
the	O
gameplay	O
elements	O
found	O
in	O
the	O
original	O
.	O
</s>
<s>
In	O
addition	O
,	O
despite	O
being	O
localized	O
as	O
such	O
in	O
Western	O
markets	O
,	O
Digimon	B-Application
World	I-Application
DS	I-Application
,	O
Digimon	B-Application
World	I-Application
Dawn	I-Application
and	I-Application
Dusk	I-Application
,	O
Digimon	B-Device
World	I-Device
Data	I-Device
Squad	I-Device
,	O
and	O
Digimon	B-Device
World	I-Device
Championship	I-Device
have	O
no	O
relation	O
to	O
the	O
series	O
.	O
</s>
<s>
Digimon	B-Application
World	I-Application
Re:Digitize	I-Application
was	O
first	O
announced	O
in	O
July	O
2011	O
,	O
in	O
an	O
issue	O
of	O
V-Jump	O
,	O
as	O
the	O
first	O
Digimon	O
game	O
for	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
Digimon	B-Application
World	I-Application
:	I-Application
Next	I-Application
Order	I-Application
was	O
announced	O
in	O
the	O
July	O
2015	O
issue	O
of	O
V-Jump	O
.	O
</s>
<s>
It	O
was	O
originally	O
released	O
for	O
PlayStation	B-Device
Vita	I-Device
and	O
published	O
by	O
Bandai	O
Namco	O
.	O
</s>
<s>
A	O
trailer	O
was	O
released	O
on	O
July	O
31	O
and	O
featured	O
clips	O
from	O
the	O
original	O
Digimon	B-Application
World	I-Application
before	O
showcasing	O
its	O
gameplay	O
.	O
</s>
