<s>
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
is	O
a	O
series	O
of	O
platform	O
racing	O
video	O
games	O
developed	O
by	O
Ubisoft	O
RedLynx	O
.	O
</s>
<s>
The	O
first	O
game	O
in	O
the	O
series	O
,	O
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
was	O
released	O
on	O
December	O
19	O
,	O
2008	O
for	O
the	O
Flash	B-Operating_System
,	O
Windows	B-Application
and	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
platforms	O
and	O
on	O
March	O
27	O
,	O
2009	O
for	O
the	O
iOS	B-Application
platform	O
.	O
</s>
<s>
A	O
sequel	O
,	O
entitled	O
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
2	I-Operating_System
,	O
was	O
released	O
on	O
April	O
5	O
,	O
2010	O
exclusively	O
for	O
the	O
iOS	B-Application
platform	O
.	O
</s>
<s>
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
2	I-Operating_System
received	O
higher	O
scores	O
in	O
general	O
,	O
and	O
currently	O
has	O
an	O
aggregate	O
score	O
of	O
80/100	O
at	O
Metacritic	O
.	O
</s>
<s>
The	O
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
series	O
is	O
played	O
as	O
a	O
sidescrolling	O
racing	O
game	O
.	O
</s>
<s>
On	O
iOS	B-Application
devices	O
both	O
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
and	O
its	O
sequel	O
are	O
played	O
using	O
on-screen	O
touch	O
controls	O
in	O
combination	O
with	O
tilting	O
the	O
device	O
.	O
</s>
<s>
The	O
original	O
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
is	O
played	O
using	O
the	O
keyboard	O
on	O
the	O
Flash	B-Operating_System
,	O
Windows	B-Application
and	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
platforms	O
.	O
</s>
<s>
The	O
Flash	B-Operating_System
version	O
is	O
also	O
unique	O
in	O
that	O
it	O
does	O
not	O
use	O
a	O
3D	O
engine	O
,	O
but	O
rather	O
a	O
2D	O
version	O
similar	O
to	O
RedLynx	O
's	O
original	O
Trials	O
game	O
.	O
</s>
<s>
The	O
original	O
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
game	O
was	O
released	O
on	O
December	O
19	O
,	O
2008	O
for	O
Microsoft	B-Application
Windows	I-Application
and	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
.	O
</s>
<s>
It	O
was	O
released	O
for	O
iOS	B-Application
devices	O
on	O
March	O
23	O
,	O
2009	O
.	O
</s>
<s>
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
2	I-Operating_System
was	O
announced	O
on	O
March	O
26	O
,	O
2010	O
.	O
</s>
<s>
It	O
was	O
released	O
for	O
the	O
iOS	B-Application
platform	O
on	O
April	O
5	O
,	O
2010	O
.	O
</s>
<s>
The	O
original	O
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
received	O
mixed	O
reviews	O
from	O
critics	O
.	O
</s>
<s>
Aggregate	O
website	O
GameRankings	O
reports	O
a	O
score	O
of	O
54%	O
for	O
the	O
Windows	B-Application
version	O
with	O
only	O
one	O
review	O
.	O
</s>
<s>
In	O
the	O
April	O
2009	O
issue	O
of	O
PC	O
Format	O
the	O
Windows	B-Application
version	O
of	O
the	O
game	O
received	O
a	O
score	O
of	O
54/100	O
.	O
</s>
<s>
Absolute	O
Game	O
's	O
Michael	O
Kalinchenko	O
gave	O
the	O
Windows	B-Application
version	O
a	O
69%	O
.	O
</s>
<s>
Pocket	O
Gamers	O
Tracy	O
Erickson	O
gave	O
the	O
iOS	B-Application
version	O
a	O
5/10	O
.	O
</s>
<s>
AppSpy	O
's	O
Damian	O
Chiappara	O
gave	O
the	O
iOS	B-Application
version	O
of	O
game	O
a	O
3/5	O
.	O
</s>
<s>
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
2	I-Operating_System
received	O
higher	O
scoring	O
reviews	O
.	O
</s>
<s>
Rip	O
Empson	O
of	O
PC	O
World	O
called	O
Monster	B-Operating_System
Trucks	I-Operating_System
Nitro	I-Operating_System
2	I-Operating_System
"	O
a	O
welcome	O
improvement	O
from	O
its	O
predecessor	O
"	O
.	O
</s>
