Debug mode:
Enter the "Options" menu during game play and use the "Quit Game" selection. Press Left, Right, Left, Right, Left, Right, Right, Right, A at the "Yes" or "No" prompt. Enter the "Utilities" menu and select the "Test Mode" option.
Ending bonus:
Complete the game and wait at the final screen of the game for a few minutes. A new screen that displays your completion time and medal will appear as a series of audio bloopers plays. Note: The faster the game is completed, the more bloopers will be played.