<s>
Kao	B-Application
Challengers	I-Application
is	O
an	O
action-adventure	O
video	O
game	O
featuring	O
Kao	B-Application
the	I-Application
Kangaroo	I-Application
developed	O
by	O
Tate	O
Interactive	O
and	O
published	O
by	O
Atari	O
Europe	O
.	O
</s>
<s>
Challengers	O
is	O
an	O
enhanced	O
remake	O
of	O
Kao	B-Application
the	I-Application
Kangaroo	I-Application
:	I-Application
Round	I-Application
2	I-Application
,	O
released	O
a	O
year	O
earlier	O
in	O
Europe	O
.	O
</s>
<s>
Kao	B-Application
Challengers	I-Application
has	O
the	O
same	O
storyline	O
as	O
Kao	B-Application
the	I-Application
Kangaroo	I-Application
:	I-Application
Round	I-Application
2	I-Application
.	O
</s>
<s>
Kao	O
can	O
do	O
many	O
actions	O
such	O
as	O
flying	O
,	O
throwing	O
boomerangs	B-General_Concept
,	O
cones	O
and	O
other	O
objects	O
,	O
swimming	O
and	O
skating	O
.	O
</s>
<s>
A	O
lot	O
of	O
special	O
effects	O
have	O
been	O
put	O
into	O
the	O
game	O
such	O
as	O
motion	O
blur	O
and	O
blending	B-Algorithm
to	O
make	O
it	O
a	O
graphically	O
enjoyable	O
video	O
game	O
.	O
</s>
<s>
The	O
sequel	O
to	O
this	O
game	O
and	O
Round	O
2	O
was	O
titled	O
Kao	B-Application
the	I-Application
Kangaroo	I-Application
:	O
Mystery	O
of	O
the	O
Volcano	O
,	O
and	O
was	O
released	O
for	O
the	O
PC	O
in	O
2006	O
exclusively	O
in	O
some	O
non-English	O
countries	O
,	O
serving	O
as	O
the	O
character	O
's	O
swan	O
song	O
.	O
</s>
