<s>
is	O
an	O
action	B-Application
role-playing	I-Application
game	I-Application
co-developed	O
by	O
Sonic	O
Team	O
and	O
Alfa	O
System	O
,	O
and	O
published	O
by	O
Sega	O
for	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
game	O
's	O
single-player	O
story	O
mode	O
,	O
Phantasy	B-Application
Star	I-Application
Portable	I-Application
has	O
a	O
cooperative	O
multi-player	O
mode	O
that	O
supports	O
up	O
to	O
four	O
players	O
.	O
</s>
<s>
The	O
2009	O
sequel	O
,	O
Phantasy	B-Application
Star	I-Application
Portable	I-Application
2	I-Application
,	O
takes	O
place	O
three	O
years	O
after	O
the	O
events	O
of	O
Phantasy	B-Application
Star	I-Application
Portable	I-Application
.	O
</s>
<s>
Phantasy	B-Application
Star	I-Application
Portable	I-Application
begins	O
a	O
few	O
months	O
after	O
the	O
conclusion	O
of	O
Phantasy	B-Application
Star	I-Application
Universe	I-Application
(	O
2006	O
)	O
and	O
its	O
expansion	O
,	O
Ambition	O
of	O
the	O
Illuminus	O
(	O
2007	O
)	O
,	O
in	O
which	O
an	O
alliance	O
of	O
humans	O
,	O
newmans	O
,	O
beasts	O
,	O
and	O
CASTs	O
of	O
the	O
Gurhal	O
star	O
system	O
drove	O
off	O
alien	O
invaders	O
known	O
as	O
S.E.E.D.	O
</s>
<s>
The	O
game	O
received	O
"	O
mixed	O
"	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
<s>
James	O
Mielke	O
of	O
1Up.com	O
gave	O
the	O
game	O
a	O
A	O
-	O
stating	O
,	O
"	O
The	O
truly	O
neat	O
trick	O
that	O
Portable	O
performs	O
is	O
that	O
it	O
is	O
not	O
only	O
an	O
excellent	O
distillation	O
of	O
the	O
Phantasy	B-Application
Star	I-Application
Online/Universe	O
experience	O
,	O
but	O
it	O
makes	O
me	O
want	O
to	O
go	O
back	O
and	O
give	O
Ambition	O
of	O
the	O
Illuminus	O
another	O
shot	O
,	O
even	O
if	O
it	O
's	O
just	O
to	O
reinvestigate	O
that	O
game	O
's	O
offline	O
mode.	O
"	O
</s>
<s>
Phantasy	B-Application
Star	I-Application
Portable	I-Application
was	O
the	O
14th	O
best-selling	O
game	O
in	O
Japan	O
in	O
2008	O
.	O
</s>
