Splatterhouse cheats and cheat codes for Nintendo Wii

Play on Hard mode:
Go to the title screen. Hold Select until "HARD" word displayed.

Stage Select option:
When the prologue starts up and there's a house in the rain, push 
Select 3 times, then hold down-left on the D-pad and press button 
1 or 2. 

Sound Test option:
Unlock the Stafe Selection option, by entering the previous code. When 
the stage selection screen displayed and the game asks you to select the 
starting stage, press and hold the Select button. 

Keep held for a few seconds, and the stage select option will turn to 
a sound test menu. You can listen various musics and sound effects from 
the game in this mode. To go back to the stage select menu, hold Select 
for a few seconds again.