These are two seperate robots. The predator robot chases the prey robot. Ea=
ch consists of 1 battery, 1 distance and 2 drives. The drives are the only =
blocks that are reprogrammed. The prey drives uses code 13572.c and the pre=
dator drives use code 7956.c. The predator moves forward until it gets clos=
e to the prey. The prey moves away if it detects a predator close to it.