<s>
Ar	B-Application
tonelico	I-Application
:	I-Application
Melody	I-Application
of	I-Application
Elemia	I-Application
,	O
released	O
in	O
Japan	O
as	O
is	O
a	O
role-playing	O
video	O
game	O
developed	O
by	O
Gust	O
Corporation	O
for	O
the	O
PlayStation	B-Device
2	I-Device
and	O
originally	O
published	O
by	O
Banpresto	O
in	O
2006	O
.	O
</s>
<s>
A	O
sequel	O
titled	O
Ar	B-Application
tonelico	I-Application
II	I-Application
:	I-Application
Melody	I-Application
of	I-Application
Metafalica	I-Application
was	O
released	O
in	O
Japan	O
in	O
2007	O
.	O
</s>
<s>
A	O
second	O
sequel	O
,	O
Ar	B-Application
tonelico	I-Application
Qoga	I-Application
:	I-Application
Knell	I-Application
of	I-Application
Ar	I-Application
Ciel	I-Application
was	O
released	O
in	O
2011	O
.	O
</s>
<s>
Ar	O
tonelico	O
features	O
a	O
turn-based	O
battle	O
system	O
akin	O
to	O
those	O
of	O
the	O
Atelier	B-Application
Iris	I-Application
series	O
.	O
</s>
<s>
The	O
upper	O
world	O
is	O
very	O
advanced	O
,	O
and	O
the	O
Floating	O
City	O
of	O
Platina	O
is	O
even	O
considered	O
to	O
be	O
a	O
holy	O
sanctuary	O
by	O
the	O
Church	O
of	O
Elemia	B-Application
from	O
the	O
lower	O
world	O
.	O
</s>
<s>
The	O
Tower	O
functions	O
much	O
like	O
a	O
computer	B-Application
program	I-Application
,	O
and	O
is	O
susceptible	O
to	O
viruses	O
which	O
are	O
emerging	O
at	O
an	O
alarming	O
rate	O
to	O
wreak	O
havoc	O
on	O
both	O
the	O
upper	O
and	O
lower	O
worlds	O
.	O
</s>
<s>
The	O
main	O
protagonist	O
is	O
Lyner	O
Barsett	O
,	O
a	O
Knight	O
of	O
Elemia	B-Application
who	O
fell	O
from	O
Platina	O
when	O
attempting	O
to	O
destroy	O
one	O
of	O
the	O
viruses	O
,	O
who	O
was	O
then	O
saved	O
by	O
a	O
reyvateil	O
,	O
Aurica	O
Nestmile	O
.	O
</s>
<s>
Other	O
playable	O
characters	O
include	O
Jack	O
Hamilton	O
,	O
a	O
lone	O
gunner	O
;	O
Krusche	O
Elendia	O
,	O
an	O
airship	O
grathmelder	O
;	O
Radolf	O
Schnaizen	O
,	O
a	O
Cardinal	O
with	O
the	O
Church	O
of	O
Elemia	B-Application
;	O
Shurelia	O
,	O
the	O
Tower	O
's	O
administrator	O
;	O
and	O
Ayatane	O
Michitaka	O
,	O
a	O
fellow	O
Knight	O
of	O
Elemia	B-Application
.	O
</s>
<s>
It	O
is	O
represented	O
in-game	O
by	O
unique	O
glyphs	B-Application
.	O
</s>
<s>
During	O
the	O
last	O
level	O
of	O
the	O
Cosmospheres	O
of	O
both	O
Aurica	O
and	O
Misha	O
,	O
there	O
is	O
a	O
bonus	O
level	O
called	O
Level	O
E	O
.	O
These	O
worlds	O
are	O
a	O
reference	O
to	O
the	O
worlds	O
of	O
Atelier	B-Application
Marie	I-Application
and	O
Atelier	O
Elie	O
made	O
by	O
Gust	O
in	O
reference	O
to	O
the	O
Atelier	O
series	O
featuring	O
artwork	O
and	O
music	O
from	O
those	O
games	O
.	O
</s>
<s>
Upon	O
completion	O
of	O
these	O
levels	O
,	O
Aurica	O
and	O
Misha	O
will	O
obtain	O
the	O
costumes	O
of	O
Marie	O
(	O
Marlone	O
)	O
and	O
Elie	O
(	O
Elfir	O
)	O
for	O
use	O
in	O
battle	O
;	O
and	O
although	O
,	O
not	O
available	O
in	O
game	O
,	O
the	O
Extras	O
menu	O
has	O
an	O
unlockable	O
image	O
of	O
Shurelia	O
in	O
Lita	O
's	O
costume	O
from	O
Atelier	B-Application
Iris	I-Application
:	I-Application
Eternal	I-Application
Mana	I-Application
.	O
</s>
