<s>
Dead	B-Application
Trigger	I-Application
2	I-Application
is	O
a	O
zombie-themed	O
first	O
person	O
survival	O
horror	O
video	O
game	O
developed	O
and	O
published	O
by	O
Madfinger	O
Games	O
.	O
</s>
<s>
It	O
was	O
released	O
for	O
Android	B-Application
and	O
iOS	B-Application
devices	O
on	O
October	O
23	O
,	O
2013	O
,	O
and	O
for	O
Facebook	B-Application
on	O
February	O
20	O
,	O
2014	O
.	O
</s>
<s>
As	O
with	O
the	O
original	O
Dead	B-Application
Trigger	I-Application
,	O
Dead	B-Application
Trigger	I-Application
2	I-Application
is	O
a	O
single-player	O
zombie-themed	O
shooter	O
.	O
</s>
<s>
Nvidia	O
showcased	O
Dead	B-Application
Trigger	I-Application
2	I-Application
as	O
the	O
first	O
tech	O
demo	O
for	O
their	O
upcoming	O
Tegra	O
4	O
mobile	O
system-on-a-chip	B-Architecture
;	O
Slide	O
to	O
Play	O
and	O
Android	B-Application
Police	O
compared	O
the	O
graphical	O
quality	O
to	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
and	O
PlayStation	B-Operating_System
3	I-Operating_System
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
2	I-Application
utilizes	O
the	O
Unity	B-Application
game	I-Application
engine	I-Application
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
2	I-Application
is	O
a	O
zombie-apocalypse-themed	O
first-person	O
shooter	O
with	O
survival	O
horror	O
and	O
action	B-Application
role-playing	I-Application
elements	O
,	O
currently	O
available	O
on	O
iOS	B-Application
,	O
Android	B-Application
and	O
recently	O
on	O
Windows	B-Protocol
Phone	I-Protocol
8.1	O
mobile	O
devices	O
.	O
</s>
<s>
Running	O
on	O
the	O
Unity	B-Application
game	I-Application
engine	I-Application
,	O
the	O
game	O
features	O
a	O
progression	O
system	O
,	O
numerous	O
environments	O
,	O
unlockable	O
and	O
upgradable	O
weapons	O
,	O
and	O
various	O
story-based	O
and	O
quick-play	O
mission	O
types	O
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
2	I-Application
is	O
a	O
free-movement	O
shooter	O
;	O
rather	O
than	O
the	O
on-rails	O
gameplay	O
typical	O
of	O
mobile	O
zombie	B-Application
shooters	O
,	O
the	O
player	O
controls	O
the	O
character	O
's	O
movement	O
like	O
a	O
typical	O
console	O
or	O
PC	O
FPS	O
.	O
</s>
<s>
The	O
game	O
features	O
two	O
dramatically	O
different	O
control	O
paradigms	O
;	O
with	O
the	O
default	O
controls	O
,	O
the	O
player	O
merely	O
aims	O
at	O
zombies	B-Application
-	O
their	O
weapons	O
will	O
attack	O
automatically	O
when	O
a	O
zombie	B-Application
is	O
underneath	O
the	O
crosshair	O
.	O
</s>
<s>
Gameplay	O
typically	O
revolves	O
around	O
completing	O
objectives	O
while	O
killing	O
zombies	B-Application
(	O
occasionally	O
killing	O
zombies	B-Application
is	O
the	O
only	O
objective	O
)	O
.	O
</s>
<s>
It	O
also	O
has	O
an	O
infinite	O
wave	O
of	O
zombies	B-Application
in	O
the	O
arena	O
of	O
death	O
.	O
</s>
<s>
The	O
player	O
loses	O
health	O
when	O
hit	O
by	O
zombies	B-Application
or	O
by	O
certain	O
environmental	O
hazards	O
(	O
i.e.	O
</s>
<s>
The	O
player	O
can	O
regain	O
health	O
by	O
taking	O
healing	O
pills	O
or	O
getting	O
a	O
health	O
power	O
up	O
from	O
a	O
special	O
zombie	B-Application
.	O
</s>
<s>
Enemies	O
come	O
in	O
two	O
flavors	O
,	O
standard	O
zombies	B-Application
and	O
special	O
zombies	B-Application
.	O
</s>
<s>
Standard	O
zombies	B-Application
often	O
plod	O
along	O
at	O
a	O
slow	O
pace	O
and	O
attack	O
with	O
their	O
arms	O
,	O
but	O
some	O
may	O
sprint	O
or	O
carry	O
melee	O
weapons	O
for	O
increased	O
damage	O
.	O
</s>
<s>
Special	O
zombies	B-Application
have	O
distinct	O
appearances	O
and	O
unique	O
traits	O
;	O
they	O
are	O
deadlier	O
and	O
tougher	O
to	O
kill	O
,	O
but	O
drop	O
blueprints	O
or	O
large	O
amounts	O
of	O
cash	O
(	O
and	O
sometimes	O
health	O
)	O
when	O
killed	O
.	O
</s>
<s>
Dead	B-Application
Trigger	I-Application
2	I-Application
received	O
positive	O
reviews	O
from	O
critics	O
.	O
</s>
<s>
Review	B-Application
aggregator	I-Application
website	O
Metacritic	O
provides	O
a	O
score	O
of	O
77	O
out	O
of	O
100	O
based	O
on	O
12	O
critics	O
.	O
</s>
