<s>
It	O
was	O
released	O
for	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
on	O
December	O
5	O
,	O
2013	O
in	O
Japan	O
.	O
</s>
<s>
However	O
,	O
in	O
2064	O
,	O
humankind	O
were	O
constantly	O
attacked	O
by	O
Gaist	O
,	O
a	O
race	O
of	O
metallic	O
creatures	O
whose	O
bodies	O
were	O
encrusted	O
with	O
Gaimetal	O
,	O
thus	O
forming	O
the	O
GCG	O
(	O
also	O
known	O
as	O
"	O
Gaist	B-Application
Crusher	I-Application
Garrison	O
"	O
)	O
,	O
an	O
organization	O
tasked	O
with	O
dealing	O
against	O
the	O
Gaist	O
.	O
</s>
<s>
In	O
2075	O
,	O
the	O
GCG	O
send	O
out	O
mankind	O
's	O
line	O
of	O
defense	O
:	O
the	O
Gaist	B-Application
Crushers	I-Application
,	O
humans	O
who	O
can	O
wear	O
a	O
special	O
Gaimetal	O
armor	O
called	O
"	O
Gaist	O
Gear	O
"	O
,	O
and	O
battle	O
the	O
Gaist	O
,	O
as	O
well	O
as	O
the	O
threat	O
opposed	O
by	O
a	O
mysterious	O
organization	O
called	O
"	O
Erasers	O
"	O
.	O
</s>
<s>
A	O
few	O
months	O
after	O
their	O
victory	O
against	O
Erasers	O
,	O
Rekka	O
Shirogane	O
and	O
the	O
other	O
Gaist	B-Application
Crushers	I-Application
are	O
faced	O
with	O
a	O
new	O
threat	O
from	O
the	O
ultimate	O
Gaist	O
,	O
called	O
,	O
led	O
by	O
the	O
powerful	O
God	O
Hinokagutsuchi	O
,	O
who	O
plans	O
to	O
cleanse	O
Earth	O
of	O
its	O
"	O
impurity	O
"	O
,	O
which	O
was	O
blamed	O
on	O
the	O
human	O
race	O
.	O
</s>
<s>
The	O
gameplay	O
is	O
fairly	O
similar	O
to	O
Lord	B-Application
of	I-Application
Arcana	I-Application
,	O
with	O
most	O
of	O
its	O
combat	O
mechanics	O
bears	O
similar	O
to	O
God	B-Application
Eater	I-Application
,	O
although	O
it	O
usually	O
focuses	O
on	O
combos	O
and	O
techniques	O
.	O
</s>
<s>
In	O
this	O
form	O
,	O
a	O
character	O
will	O
be	O
transformed	O
into	O
a	O
Gaist	O
closest	O
to	O
the	O
Gaist	B-Application
Crusher	I-Application
's	O
Gaist	O
Gear	O
,	O
thus	O
gaining	O
invincibility	O
and	O
more	O
attack	O
power	O
.	O
</s>
<s>
The	O
Jewel-type	O
Gaimetals	O
are	O
gem-like	O
Gaimetals	O
where	O
Gaist	O
were	O
usually	O
sealed	O
in	O
,	O
and	O
most	O
of	O
this	O
kind	O
of	O
Gaimetal	O
were	O
used	O
by	O
the	O
Gaist	B-Application
Crushers	I-Application
.	O
</s>
<s>
When	O
a	O
Gaist	O
's	O
certain	O
body	O
part	O
cracks	O
,	O
and	O
crystals	O
sprout	O
out	O
of	O
it	O
,	O
a	O
Crush	O
Chance	O
( クラッシュチャンス	O
)	O
occur	O
,	O
giving	O
the	O
Gaist	B-Application
Crushers	I-Application
the	O
opportunity	O
to	O
destroy	O
its	O
"	O
crush	O
metal	O
"	O
to	O
defeat	O
and	O
restore	O
them	O
into	O
their	O
Gaimetal	O
form	O
.	O
</s>
<s>
Usually	O
referred	O
to	O
"	O
GCG	O
"	O
,	O
the	O
Gaist	B-Application
Crusher	I-Application
Garrison	O
( ガイストクラッシャーギャリソン	O
)	O
is	O
a	O
worldwide-sanctioned	O
organization	O
whose	O
main	O
mission	O
is	O
to	O
analyse	O
,	O
research	O
,	O
and	O
even	O
subdue	O
any	O
Gaist	O
around	O
the	O
globe	O
.	O
</s>
<s>
The	O
Gaist	B-Application
Crushers	I-Application
usually	O
works	O
under	O
the	O
Gaist	B-Application
Crusher	I-Application
Garrison	O
,	O
selected	O
for	O
their	O
respective	O
specialties	O
,	O
such	O
as	O
combat	O
,	O
tactical	O
strategies	O
,	O
and	O
such	O
.	O
</s>
<s>
A	O
portable	O
device	O
usually	O
used	O
by	O
the	O
Gaist	B-Application
Crushers	I-Application
and	O
most	O
of	O
the	O
Gaist	B-Application
Crusher	I-Application
Garrison	O
's	O
personnel	O
.	O
</s>
<s>
The	O
"	O
GC	O
Model	O
"	O
Gai	O
Phone	O
was	O
only	O
available	O
for	O
the	O
Gaist	B-Application
Crushers	I-Application
,	O
and	O
it	O
has	O
a	O
special	O
function	O
called	O
"	O
Gaist	O
On	O
!	O
"	O
</s>
<s>
The	O
Gaist	O
Gear	O
can	O
be	O
equipped	O
by	O
the	O
Gaist	B-Application
Crushers	I-Application
via	O
a	O
special	O
command	O
,	O
called	O
"	O
Gaist	O
On	O
"	O
.	O
</s>
<s>
Weapon	O
Form	O
( ウェポンフォーム	O
)	O
:	O
This	O
form	O
takes	O
shape	O
of	O
a	O
weapon	O
for	O
the	O
Gaist	B-Application
Crusher	I-Application
to	O
use	O
.	O
</s>
<s>
The	O
organization	O
where	O
the	O
Gaist	B-Application
Crushers	I-Application
were	O
working	O
with	O
,	O
whose	O
sole	O
purpose	O
is	O
to	O
research	O
and	O
,	O
if	O
possible	O
,	O
eliminate	O
the	O
Gaist	O
.	O
</s>
<s>
The	O
game	O
was	O
announced	O
in	O
April	O
2013	O
as	O
a	O
cross-media	O
campaign	O
with	O
a	O
Nintendo	B-Operating_System
3DS	I-Operating_System
"	O
Custom	O
Armor	O
Action	O
"	O
game	O
as	O
the	O
core	O
.	O
</s>
