Jumping onto the foam increases the difficulty of the exercise. Concentrate on landing on the foam and regaining your balance before jumping off. Jumping from different directions increases the difficulty of the exercise. At first work on jumping forward and backward. The second part of the exercise works from side to side. Finally, incorporate diagonal directions onto the foam.
The exercises can become more difficult with incorporating softer foam, weights, or squatting. A more difficult version of the exercise has a person jump onto the foam and then close their eyes and maintain balance.