On tournament or quick game modes, go to team battle and place players one, two, and three on team "A" and player four on team "B". Choose these players. First Spike, then Tom, then two Jerrys. You will now have access to the Some Like it Hotter and Raging Mouse courses. If you want to play these again, repeat the steps. Note: All players have to be human (four controllers used).
Note: This requires two controllers. To the secret levels (Some Like It Hotter and Raging Mouse), you must choose Tom for player one and Tom for player two. Turn off the other players. Note: Both players must be human. To get the levels again, repeat this.