No More Heroes - Bitter difficulty

Completion bonus:
Successfully complete the game and save when prompted after the credits. You can start a new game session and keep the items obtained during your previous game.

Get Shirt 00:
Beat the game and you will unlock a new shirt.

Unlock Pure White Giant Glastonbury:
To unlock the minigame "Pure White Giant Glastonbury", beat the Rank 04 battle. To play it, go back to the motel and select your TV. The game can be played from there.

Assassination missions:
Successfully complete the odd jobs given at the Job Center.

Pure White Giant Glastonbury mini-game:
Go back to the motel and select your television, then win the Rank 04 battle.

Alternate ending sequence:
Successfully complete the game with all beam katanas collected. Note: If you did not have them all at the end of the game, return to Santa Destroy. Obtain the beam katanas, then return to a bathroom to view the ending.

Motorcycle controls:
There are hidden actions with a Wiimote that can be used to control the motorcycle.

Jump: Tilt the Wiimote up while riding at full speed.
Quick turn: Use the brakes suddenly while tilting the Wiimote to the left or right.

Jumping loading star icon:
Whenever the loading star icon appears in the bottom right of the screen tap B repeatedly to make it jump towards the top of the screen. Do it fast enough and the star icon will begin to continuously wrap around the screen; changing color with each revolution.