Sonic 2 Codes Level Select Press 19, 65, 09, 17 at the sound test.Then press start and at the title screen press A and start. Debug Mode First enter the level select code. Now in the sound test, enter- 1,9,9,2,1,1,2,4. Now highlight the stage you want and press start while holding A. Enable Super Sonic First enetr the level select code. In the sound test enter 4,1,2,6 then exit level select. Start as normal and collest 50 rings. Level select (Beta) At the title screen hold A and press "START" Green Sonic from codes.ign.com "To get green sonic you must enter the level select and debug code. Then you must choose one of the emerald hill zone levels because the code only works in emerald hill zone (1 or 2.) When you start the level press B, you will be a ring,then press a four times,you will be four rings in a row going up or down,you then hold c and right for about 5 seconds,then you go back to the begining, keep pressing a until your the top of a waterfall. You may not see yourself but you're there. Now do the same thing as before, hold c and right for about five seconds. Then press b and you'll be green" Play At Night Enter debug and and hold C and press START to select level