From the back of the box:
Dizzy Dizzy Dinosaur is the thrilling game where a goofy, rowdy dinosaur is the center of attention! Dizzy's not a monster, he's a friendly dinosaur who just likes to whirl around and have fun! When you roll the dice and they come up with a Dizzy or two, it's time to let him loose on the board. He may turn left, he may spin right, there's just no tellint! If he bumps your cavemen off the path, you have to go back to start...so get your caveman to the cave as quickly as you can to win!