3 cheat codes for Sonic the Hedgehog on Genesis.
At the title screen press Up, Down, Left, Right quickly (a ring chime confirms), then hold A and press Start. After the first time, hold A + Start on the title screen re-opens it.
Up, Down, Left, Right (title screen), then hold A + press StartTurn on the console with no cartridge-locked menus needed — the codes below are entered on the title screen or in the Options menu as described per entry. Original Genesis/Mega Drive version.
In the Level Select screen's Sound Test, play those sounds in order, then select any Zone, hold A and press Start. Press B to enter debug — A cycles sprites, C places them. First-production-run cartridges only.
01, 09, 09, 02, 01, 01, 02, 04 (Level Select sound test)Turn on the console with no cartridge-locked menus needed — the codes below are entered on the title screen or in the Options menu as described per entry. Original Genesis/Mega Drive version.
During the attract-mode demo, hold A + B + C to make Sonic 'get confused' and lose his place — the game's build-in demo break.
Hold A + B + CTurn on the console with no cartridge-locked menus needed — the codes below are entered on the title screen or in the Options menu as described per entry. Original Genesis/Mega Drive version.