<s>
Undercover	B-Application
:	I-Application
Operation	I-Application
Wintersun	I-Application
is	O
an	O
adventure	O
game	O
developed	O
by	O
Sproing	O
Interactive	O
Media	O
and	O
published	O
by	O
Lighthouse	O
Interactive	O
.	O
</s>
<s>
Undercover	B-Application
:	I-Application
Operation	I-Application
Wintersun	I-Application
received	O
mixed	O
reviews	O
from	O
critics	O
;	O
it	O
received	O
a	O
57%	O
and	O
a	O
62.80	O
%	O
from	O
Metacritic	O
and	O
GameRankings	O
respectively	O
.	O
</s>
<s>
Much	O
of	O
the	O
criticism	O
focused	O
on	O
the	O
game	O
's	O
difficulty	O
.	O
</s>
<s>
A	O
spin-off	O
,	O
Undercover	O
:	O
Dual	O
Motives	O
,	O
was	O
published	O
by	O
ANACONDA	O
on	O
the	O
Nintendo	B-Device
DS	I-Device
in	O
Germany	O
in	O
2007	O
.	O
</s>
<s>
Undercover	B-Application
:	I-Application
Operation	I-Application
Wintersun	I-Application
is	O
a	O
point-and-click	O
adventure	O
game	O
set	O
in	O
the	O
middle	O
of	O
World	O
War	O
II	O
.	O
</s>
<s>
The	O
player	O
character	O
,	O
Dr.	O
John	O
Russell	O
,	O
a	O
nuclear	O
physicist	O
,	O
is	O
tasked	O
by	O
MI-6	O
to	O
uncover	O
the	O
progress	O
of	O
German	O
atomic	O
bomb-making	O
capabilities	O
and	O
to	O
destroy	O
one	O
of	O
the	O
first	O
German	O
nuclear	O
weapon	O
prototypes	O
to	O
be	O
detonated	O
in	O
Stalingrad	B-Language
by	O
the	O
SS	B-Language
.	O
</s>
<s>
The	O
game	O
requires	O
players	O
to	O
interact	O
with	O
the	O
environment	O
using	O
the	O
mouse	B-Device
.	O
</s>
<s>
The	O
visuals	O
use	O
static	O
2D	O
backgrounds	O
which	O
the	O
player	O
's	O
3D	O
player	O
character	O
moves	O
inside	O
.	O
</s>
<s>
Undercover	B-Application
:	I-Application
Operation	I-Application
Wintersun	I-Application
has	O
garnered	O
mixed	O
reviews	O
from	O
critics	O
;	O
it	O
has	O
received	O
a	O
57%	O
and	O
a	O
62.8	O
%	O
from	O
Metacritic	O
and	O
GameRankings	O
respectively	O
.	O
</s>
<s>
GameSpot	O
referred	O
to	O
one	O
of	O
the	O
game	O
's	O
first	O
puzzles	O
,	O
where	O
the	O
player	O
must	O
pick	O
up	O
a	O
potato	O
from	O
a	O
garbage	O
can	O
in	O
order	O
to	O
distract	O
a	O
crow	O
so	O
the	O
player	O
can	O
listen	O
into	O
a	O
conversation	O
,	O
as	O
part	O
of	O
"	O
a	O
greatest-hits	O
collection	O
of	O
maddening	O
adventure-game	O
absurdities	O
"	O
.	O
</s>
<s>
IGN	O
focused	O
its	O
criticism	O
on	O
the	O
game	O
's	O
voice	O
acting	O
,	O
which	O
it	O
noted	O
was	O
"	O
some	O
of	O
the	O
least	O
enthusiastic	O
voice	O
acting	O
we	O
've	O
heard	O
this	O
year	O
"	O
.	O
</s>
<s>
GameSpot	O
and	O
IGN	O
also	O
both	O
noted	O
the	O
game	O
's	O
tendency	O
to	O
be	O
extremely	O
buggy	O
,	O
with	O
the	O
game	O
crashing	O
several	O
times	O
toward	O
the	O
end	O
of	O
play	O
.	O
</s>
<s>
Praise	O
focused	O
on	O
the	O
game	O
's	O
unique	O
storyline	O
and	O
high	O
visual	O
quality	O
.	O
</s>
<s>
Adventure	O
Gamers	O
called	O
the	O
production	O
values	O
"	O
reasonably	O
high	O
quality	O
"	O
,	O
and	O
GameSpot	O
noted	O
that	O
despite	O
the	O
game	O
's	O
shortcomings	O
,	O
the	O
noir-style	O
story	O
kept	O
its	O
interest	O
.	O
</s>
