Reach the Pier Pressure bonus round (after Year Of The Pac) and get a score of 50,000 or more. A message at the results screen will confirm that a new map has been unlocked. Save the game, quit the game and go to "Multiplayer" option on the main menu. You should have a new place to battle a friend.
Movie player
Collect at least 70 gold stars. The "Movie Player" option can now be accessed at the stage entrance screen. Note: This also unlocks the "Sound test" and "Music player options.
Music player
Collect at least 9 gold clocks. The "Music Player" option can now be accessed at the stage entrance screen.
Sound test
Attain at least 14 positions on the high score screen. Pause game play to access the "Sound Test" option.