Traditional Al research has not give due attention to the important ro
le that physical bodies play for agents as their interactions produce
complex emergent behaviors to achieve goals in the dynamic real world.
The RoboCup Physical Agent Challenge provides a good test bed for stu
dying how physical bodies play a significant role in realizing intelli
gent behaviors using the RoboCup framework (kitano et al., 1995). In o
rder for the robots to play a soccer game reasonably well, a wide rang
e of technologies needs to be integrated, and a number of technical br
eakthroughs must be made. In this article, we present three challengin
g tasks as the RoboCup Physical Agent Challenge Phase I: (1) moving th
e ball to the specified area (shooting, passing, and dribbling) with n
o, with stationary, or with moving obstacles; (2) catching the ball fr
om an opponent or a teammate (receiving, goal keeping, and interceptin
g); and (3) passing the ball between two players. The first two tasks
are concerned with single-agent skills, while the third is related to
a simple cooperative behavior. Motivation for these challenges and eva
luation methodology is given.