For level select go to main select and select either Sonic 3 or Knuckles. Play the first level (Angel Island) as any character exept TAILS. As you get into the level you will find some vines that you swing on, grab onto one of the vines and while you are hanging press, LEFT, LEFT, LEFT, RIGHT, RIGHT, RIGHT and then UP, UP, UP..You should hear a ring if this works!! Now press ALT R to reset the game, when at the title screen, press down until you come to sound test, select it to go to the level screen. The sound test won't work, but the level select will!!