<s>
is	O
a	O
2013	O
video	O
game	O
based	O
on	O
the	O
Sword	B-Application
Art	I-Application
Online	I-Application
light	O
novel	O
series	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
in	O
both	O
standard	O
and	O
limited	O
edition	O
box	O
sets	O
in	O
Japan	O
on	O
March	O
14	O
,	O
2013	O
,	O
for	O
PlayStation	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
A	O
2014	O
sequel	O
,	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Hollow	I-Application
Fragment	I-Application
,	O
includes	O
all	O
of	O
the	O
original	O
game	O
's	O
content	O
.	O
</s>
<s>
The	O
gameplay	O
has	O
many	O
similarities	O
to	O
MMORPGs	B-Protocol
,	O
though	O
it	O
is	O
not	O
an	O
online	O
game	O
,	O
including	O
the	O
ability	O
to	O
buy	O
and	O
upgrade	O
weapons	O
,	O
go	O
on	O
missions	O
,	O
and	O
fight	O
in	O
a	O
group	O
with	O
other	O
characters	O
.	O
</s>
<s>
The	O
game	O
follows	O
an	O
alternate	O
storyline	O
from	O
the	O
end	O
of	O
the	O
first	O
arc	O
of	O
the	O
original	O
story	O
,	O
in	O
which	O
a	O
glitch	O
causes	O
Kirito	O
and	O
the	O
other	O
players	O
to	O
remain	O
in	O
Sword	B-Application
Art	I-Application
Online	I-Application
despite	O
defeating	O
Heathcliff	O
,	O
and	O
players	O
from	O
other	O
VRMMORPGs	O
,	O
such	O
as	O
second	O
and	O
third	O
arc	O
protagonists	O
Leafa	O
and	O
Sinon	O
,	O
get	O
sucked	O
into	O
the	O
game	O
themselves	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
on	O
March	O
14	O
,	O
2013	O
,	O
in	O
Japan	O
for	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
The	O
game	O
was	O
remade	O
for	O
the	O
PlayStation	O
Vita	O
in	O
the	O
form	O
of	O
Sword	B-Application
Art	I-Application
Online	I-Application
:	I-Application
Hollow	I-Application
Fragment	I-Application
.	O
</s>
<s>
Some	O
features	O
,	O
like	O
the	O
player	O
's	O
points	O
and	O
skills	O
,	O
can	O
be	O
transferred	O
from	O
Infinity	O
Moment	O
to	O
Hollow	B-Application
Fragment	I-Application
.	O
</s>
