Special features:
At the inventory screen, highlight the Timex-TMX. Hold Y until Secrets says 36/36. Quit the game and find a new option at the main menu.

Second Chapter:
At the Main Menu, highlight New Game, hold L + R and press Down.

Third Chapter:
At the Main Menu, highlight New Game, hold L + R and press Left.

Fourth Chapter:
At the Main Menu, highlight New Game, hold L + R and press Right.