<s>
Tom	B-Application
Clancy	I-Application
's	I-Application
Splinter	I-Application
Cell	I-Application
:	I-Application
Essentials	I-Application
is	O
an	O
action-adventure	O
video	O
game	O
with	O
heavy	O
emphasis	O
on	O
stealth	O
.	O
</s>
<s>
It	O
is	O
part	O
of	O
the	O
Splinter	B-Application
Cell	I-Application
series	O
and	O
was	O
released	O
for	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
handheld	O
system	O
.	O
</s>
<s>
Ubisoft	O
Montreal	O
had	O
been	O
in	O
development	O
of	O
Splinter	B-Application
Cell	I-Application
:	I-Application
Essentials	I-Application
from	O
at	O
least	O
2005	O
,	O
with	O
Ubisoft	O
Montreal	O
officially	O
announcing	O
the	O
game	O
on	O
January	O
12	O
,	O
2006	O
.	O
</s>
<s>
Following	O
the	O
announcement	O
,	O
previews	O
of	O
the	O
game	O
were	O
shown	O
to	O
journalists	O
as	O
more	O
info	O
regarding	O
specific	O
missions	O
and	O
returning	O
features	O
from	O
the	O
classic	O
Splinter	B-Application
Cell	I-Application
series	O
were	O
included	O
in	O
the	O
game	O
.	O
</s>
<s>
It	O
was	O
revealed	O
that	O
Ubisoft	O
Montreal	O
utilized	O
the	O
Unreal	O
Engine	O
2	O
for	O
Essentials	O
,	O
but	O
toned	O
down	O
to	O
run	O
properly	O
on	O
the	O
PlayStation	B-Operating_System
Portable	I-Operating_System
.	O
</s>
<s>
Critical	O
reaction	O
to	O
Splinter	B-Application
Cell	I-Application
:	I-Application
Essentials	I-Application
was	O
mixed	O
.	O
</s>
<s>
Beyond	O
this	O
,	O
the	O
game	O
plays	O
as	O
though	O
it	O
does	O
n't	O
belong	O
on	O
the	O
PSP	B-Operating_System
.	O
</s>
<s>
Greg	O
Mueller	O
of	O
GameSpot	O
gave	O
Essentials	O
a	O
score	O
of	O
5.8	O
out	O
of	O
10	O
,	O
saying	O
:	O
"	O
Splinter	B-Application
Cell	I-Application
:	I-Application
Essentials	I-Application
sounds	O
like	O
a	O
fine	O
idea	O
.	O
</s>
<s>
Take	O
some	O
missions	O
from	O
previous	O
games	O
,	O
mix	O
them	O
up	O
a	O
little	O
,	O
add	O
some	O
entirely	O
new	O
missions	O
,	O
and	O
fit	O
it	O
all	O
onto	O
the	O
PSP	B-Operating_System
.	O
</s>
