Sonic the Hedgehog 2 Cheats - Wii
Primary Collection of Cheats
Debug Mode
Go to the option menu and, using the sound test, play 01, 09, 09, 02, 01, 01, 02, 04 to activate Debug Mode. If you entered it correctly you'll here a ring chime. Then depending on your controller, press [Start] or [+] to go back to the title screen. On the Wii remote press [A] + [Start] or on the Gamecube controller press [B] + [Start] to start the game using debug mode otherwise it will start without it activated.