Sonic the Hedgehog 2 - Unlocking Level select, Debug mode and Super Sonic

Instructions

step 1. level select In the options menu Enter at sound test ''19, 65, 09, 17'', then press A + start, then when sonic and tails pop up in the intro, press A + Start to go to the level select screen.

step 2. to unlock super sonic in the level select menu, On the sound test area, enter 4,1,2,6. if done correctly you will hear the special stage chime

step 3. once the super sonic code is entered, play the following tunes-1,9,9,2,1,1,2,4-It should make a ring sound when track 4 is played to signify you've entered it correctly, now select the stage you want to go to,and press start while holding A until the stage starts,and you'll have debug activated.

Debug controls:A-Switch object B-Turn Debug on/off C-Put down object selected

Pressing A while the game is paused will cause the game to reset. ... https://www.youtube.com/watch?v=6YXmMf_ItLA