Sonic the Hedgehog cheats and cheat codes for Nintendo Wii

Crusher Sonic:
Hold C while watching the demo. Sonic will crash into walls.

Select any level:
Press Up, Down, Left, Right at the title screen. If you entered the code 
correctly you will hear a sound. Then, hold A button and press Start 
to select any level.

Alternate ending:
To watch the alternate ending you have to complete the game with all 
chaos emeralds.

Config mode:
To activate the config mode, you have to activate the control mode first.
You have to press UP, C, DOWN, C, LEFT, C, RIGHT, C at the title screen, but 
before pushing START to begin the game, press and hold A as you hit start to 
activate control mode. Now you can enable config mode by pressing button B.
Sonic will morphs into a ring and you can go with Sonic anywhere.

You can switch through any items by pressing the A button in config mode.
If you want to place the sprite that you have selected for Sonic to appear 
as, press C. If you want morph back to Sonic press B button.

Note: Config mode will distort several different things, such as the time 
and score in the game.



Cheat codes for the Japanese Version of Sonic the Hedgehog:

Config mode:
Press Up, C, Down, C, Down, C, Down, C, Left, C, Right at the title screen. 
If you entered the code correctly you should hear a sound of ring.
Begin a game when holding A button to be in Config mode. Press B button to 
activate Config mode. Sonic will morphs into a ring and you can go with 
Sonic anywhere.

You can switch through any items by pressing the A button.
If you want to place the sprite press C, hold A and press C 
to go backwards on selecting items, move around with the directional Pad.
If you want morph back to Sonic press B button.

Note: Config mode will distort several different things, such as the time 
and score in the game.
 
Select any level:
Press Up, Down, Down, Down, Left, Right at the title screen. 
If you entered the code correctly you should hear a sound of ring.
Hold A button and Press Start to select any level.

Hidden Message:
Press C, C, C, C, C, C, Up, Down, Left, Right at the title screen. When the 
demo starts, hold A, B, C, Down then press Start. This will change the Sonic 
Team logo, to a list of the game's programmers in Japanese. When the title 
screen displayed, a "Press Start Button" message will flash under Sonic's 
head.

Slow Motion and other commands:
Press C, C, Up, Down, Down, Down, Left, Right at the title screen.
If you entered the code correctly you should hear a sound of ring.
While playing, pause the game and hold B button to play in Slow Motion mode.
If you press C button, you can skip a frame.
If you press A button you will jump back to the Title Screen.