Klonoa Heroes Codes -

Completion bonuses:
Successfully complete the game and save the game when prompted. Load the cleared saved game file. You can play the Extra Vision quest in the first area and the "Music Player" option will be unlocked at the main menu.

Alternate opening sequence:
Press (x3) or (x3) at the title screen then select any main menu option. Pango or Guntz will speak instead of Klonoa.