Sonic the Hedgehog - Virtual Console Cheats
Wii | Submitted by r00tLevel Select
Enter Up, Down, Left, Right, then hold A and press Start.
Wii | Submitted by r00tReckless Sonic Demo
Hold C during the demo.
Wii | Submitted by r00tConfig Mode
Press Up, C, Down, C, Left, C, Right at the title screen, then hold A and press Start. Enable "Config Mode" by pressing B.