The House of the Dead 2 & 3 Return cheats for the Nintendo Wii

Unlockable: More Difficulty Settings (HotD3)
To unlock an easier and harder version of House of the Dead 3 for subsequent play-throughs, beat the game once through on the default difficulty. For the most extreme difficulty setting, beat both House of the Dead 2 and House of the Dead 3 on any difficulty level.

Unlockable: More Difficulty Settings (HotD2)
To unlock an easier and harder version of House of the Dead 2 for subsequent play-throughs, beat the game once through on the default difficulty.