Cheat: See Game Credits
Go to the main menu and choose "Single Player", then select "Time Trial." Enter BGM, return back to the main menu to see the new option, CHEATS. It's under Special Features.
Unlockable List
Eagle: Win dining room on 3 volts
Spirt: Win dining room on 3 volts
Harrier: Win dining room on 3 volts
Bedroom: Win dinning room two times on 3 volts
Unlockable: Everything, and Ghost Mode to Disable Collision Detection
Go to the main menu and choose "Single Player", then select "Time Trial." Enter MARK, return back to the main menu to see the new option, CHEATS. It's under Special Features.