<s>
Aliens	B-Application
:	I-Application
Thanatos	I-Application
Encounter	I-Application
is	O
a	O
2001	O
shooter	O
video	O
game	O
developed	O
by	O
Crawfish	O
Interactive	O
and	O
based	O
on	O
the	O
Alien	O
science-fiction	O
horror	O
film	O
series	O
.	O
</s>
<s>
It	O
was	O
published	O
by	O
THQ	O
and	O
released	O
for	O
the	O
Game	B-Device
Boy	I-Device
Color	I-Device
handheld	O
game	O
console	O
.	O
</s>
<s>
Aliens	B-Application
:	I-Application
Thanatos	I-Application
Encounter	I-Application
is	O
a	O
single-player	O
shooter	O
based	O
on	O
the	O
Alien	O
science-fiction	O
horror	O
film	O
series	O
.	O
</s>
<s>
It	O
was	O
published	O
by	O
THQ	O
and	O
released	O
for	O
the	O
Game	B-Device
Boy	I-Device
Color	I-Device
handheld	O
game	O
console	O
on	O
March	O
21	O
,	O
2001	O
.	O
</s>
<s>
Nintendo	B-Application
Power	I-Application
noted	O
that	O
rescuing	O
marines	O
under	O
a	O
time	O
limit	O
intensifies	O
the	O
gameplay	O
,	O
but	O
remarked	O
that	O
the	O
top-down	O
perspective	O
ruins	O
the	O
suspense	O
.	O
</s>
<s>
In	O
contrast	O
,	O
N64	O
Magazine	O
criticized	O
their	O
artificial	B-Application
intelligence	I-Application
,	O
saying	O
that	O
"	O
the	O
aliens	O
just	O
scamper	O
about	O
,	O
bumping	O
into	O
walls	O
"	O
,	O
and	O
explained	O
that	O
their	O
unpredictable	O
behavior	O
,	O
combined	O
with	O
their	O
fast	O
movement	O
speed	O
,	O
makes	O
the	O
game	O
highly	O
frustrating	O
.	O
</s>
