Sonic 2 codes: level select, debug mode and Super Sonic
Sound-test codes for level select, debug mode, 14 continues and instant Super Sonic in Sonic the Hedgehog 2.
Original 1992 16-bit Mega Drive/Genesis release. Manual Tails flight, the restored Hidden Palace and additional playable characters from later remasters are excluded; Sonic & Knuckles lock-on is a separate variant.
Level select

Go to Options and play sounds 19, 65, 09, 17 in the Sound Test. A ring sound confirms it. Return to the title screen, hold A and press Start.
Debug mode
With level select on, play sounds 01, 09, 09, 02, 01, 01, 02, 04 in the level select’s Sound Test. Choose a zone and hold A while pressing Start. In play, press B to switch debug on or off, A to change the object and C to place it.
Super Sonic without emeralds
With level select on, play sounds 04, 01, 02, 06 in the level select’s Sound Test. An emerald sound confirms it. In any zone, collect 50 rings, jump, then press jump again in the air.
14 continues
In the Options Sound Test, play 01, 01, 02, 04, then press Start.
Version note
These are for the original Mega Drive/Genesis cartridge. Mobile and later releases use different methods.
More Sonic the Hedgehog 2 quick answers
Where to find the Chaos Emeralds in Sonic 2How to unlock Super Sonic in Sonic 2Highlight each number, press C to play it, then move to the next. Wait for each sound to start before changing the number.
Picture details
Game artwork belongs to its respective rights holders.
