The awesome thing about using rewards to train is potentially they are most effectively when used inconsistently. Lets do something right for the game for something new. Prize Balloon Stomp: This is not a game, but an artistic way head kids in anticipation, not so sure what is inside their balloons. http://www.engel-und-waisen.de/index.php/Create_Video_Game_Title_For_The_Sony_Playstation_3_Slim_Move