<s>
This	O
is	O
the	O
first	O
Neptunia	B-Application
game	O
to	O
use	O
Unreal	O
Engine	O
4	O
,	O
as	O
well	O
as	O
the	O
first	O
spin-off	O
game	O
to	O
be	O
released	O
on	O
the	B-Operating_System
PlayStation	I-Operating_System
4	I-Operating_System
rather	O
than	O
the	O
PlayStation	B-Device
Vita	I-Device
.	O
</s>
<s>
Upon	O
entering	O
the	O
game	O
,	O
they	O
were	O
approached	O
by	O
the	O
guardian	O
spirit	O
,	O
Bouquet	O
,	O
who	O
is	O
one	O
of	O
the	O
game	O
's	O
non-playable	O
characters	O
that	O
is	O
equipped	O
with	O
the	O
game	O
's	O
advanced	O
artificial	B-Application
intelligence	I-Application
.	I-Application
</s>
<s>
Unlike	O
the	O
previous	O
Tamsoft-made	O
action	O
games	O
for	O
the	O
series	O
,	O
only	O
the	O
four	O
CPUs	O
,	O
Neptune	B-Application
,	O
Noire	O
,	O
Blanc	O
and	O
Vert	O
,	O
and	O
their	O
sisters	O
Nepgear	O
,	O
Uni	O
,	O
Ram	O
and	O
Rom	O
are	O
the	O
only	O
ones	O
playable	O
,	O
along	O
with	O
the	O
four	O
divine	O
goddesses	O
in	O
the	O
later	O
parts	O
of	O
the	O
story	O
.	O
</s>
