<s>
Nucleus	B-Device
is	O
a	O
twin-stick	O
shooter	O
with	O
puzzle	O
elements	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
available	O
through	O
the	O
PlayStation	O
Store	O
.	O
</s>
<s>
Interspersed	O
along	O
the	O
game	O
progression	O
are	O
encounters	O
with	O
super	O
enemies	O
(	O
the	O
Nucleus	B-Device
of	O
the	O
game	O
title	O
)	O
.	O
</s>
<s>
The	O
player	O
has	O
to	O
attempt	O
to	O
maintain	O
a	O
cell	O
barrier	O
between	O
itself	O
and	O
the	O
possibly	O
multiple	O
,	O
possibly	O
mobile	O
Nucleus	B-Device
enemies	O
,	O
while	O
harvesting	O
as	O
much	O
protein	O
as	O
possible	O
in	O
order	O
to	O
fight	O
them	O
back	O
.	O
</s>
<s>
As	O
the	O
Nucleus	B-Device
enemies	O
get	O
damaged	O
they	O
become	O
more	O
and	O
more	O
violent	O
,	O
producing	O
more	O
spore	O
and	O
eventually	O
attacking	O
the	O
player	O
directly	O
.	O
</s>
<s>
Exploding	O
protein	O
bombs	O
or	O
angry	O
Nucleus	B-Device
enemies	O
exert	O
a	O
large	O
force	O
over	O
a	O
wide	O
area	O
,	O
which	O
can	O
break	O
the	O
various	O
arrangements	O
of	O
cells	O
the	O
player	O
may	O
have	O
constructed	O
to	O
fend	O
off	O
bacteria	O
or	O
virus	O
.	O
</s>
<s>
Other	O
styles	O
of	O
level	O
are	O
also	O
offered	O
—	O
some	O
levels	O
require	O
the	O
player	O
to	O
move	O
cells	O
from	O
one	O
section	O
of	O
the	O
level	O
to	O
another	O
to	O
complete	O
them	O
,	O
some	O
are	O
straight	O
shootouts	O
with	O
no	O
Nucleus	B-Device
enemies	O
,	O
or	O
collect'em-ups	O
in	O
a	O
dynamic	O
environment	O
.	O
</s>
<s>
The	O
game	O
can	O
be	O
played	O
in	O
a	O
2-player	O
co-operative	O
mode	O
offering	O
more	O
ways	O
to	O
build	O
and	O
manipulate	O
cell	O
structures	O
or	O
to	O
distract	O
and	O
defeat	O
the	O
Nucleus	B-Device
enemies	O
.	O
</s>
<s>
A	O
patch	O
has	O
been	O
released	O
which	O
offers	O
a	O
new	O
mode	O
of	O
play	O
,	O
Nucleus+	O
,	O
which	O
speeds	O
up	O
the	O
gameplay	O
,	O
tweaks	O
most	O
of	O
the	O
existing	O
levels	O
(	O
of	O
which	O
there	O
are	O
over	O
40	O
)	O
,	O
and	O
introduces	O
some	O
new	O
ones	O
.	O
</s>
