Level select
 
 Begin a game in single player mode. Play until getting the option to
 save the game on the controller pak. Save the game, then reset.
 Select the load game option from the main menu, then choose the game
 that was saved. A prompt to insert a rumble pak will appear. Hold L +
 B for one second, then press A. Then a level selection screen will
 appear that allows any mission to be played on the current difficulty
 setting. Note: The difficulty setting may be changed by entering the
 options screen from the main menu. 
 
 Multi-player levels with one player
 
 Note: Two controllers are required for this trick. Begin a new game,
 and set the multi-player fight options to two players, solo, town,
 and 5 minutes. Then, select a character and start the game in
 multi-player mode. Quit to the main menu, then press B. The "New
 Game" option should be highlighted. Press A, select one player and
 press L, B, A when prompted to insert a rumble pak. After a brief
 pause, the game will begin in the town. 
 
 Transform into a car
 
 Begin a game in practice mode. Pick up a car and fly with it through
 all the rings around the Lexcorp building. The game will glitch after
 you fly though the last red ring, and Superman should end up in the
 car. 
 
 Cheat mode
 
 At the main menu, press C-Up, C-Down, C-Left, C-Right. If you entered
 the code correctly, Clark will say "This looks like a job for
 Superman." Then, enter one of the following codes while the game is
 paused: 
 
 Level skip
 
 Pause the game and press C-Up, C-Down.
 
 Refill health
 
 Pause the game and press Z, R.
 
 Super speed
 
 Pause the game and press R, Z.
 
 Super punch
 
 Pause the game and press L, Z.
 
 Freeze breath
 
 Pause the game and press Z, L.
 
 Heat vision
 
 Pause the game and press R, L.
 
 -From: Viper1home@aol.com
 
  Game Shark Codez:
 
                   
  Infinite Health         
  8122CDD4 42C8
                   
  Infinite Freeze Breath  
  8122CDE8 42C8
                   
  Infinite Running Boosts 
  8122CDDC 42C8
                   
  Infinite Laser Vision   
  8122CDE4 42C8
                   
  Infinite X-Ray Vision   
  8122CDE0 42C8
                   
  99 Rings Gone Through   
  801442E9 0063
                   
  Press Up For More Time  
  D00EA0B0 0008
  8115ED72 1724
  D00EA0B0 0008
  8115ED7A 0026