Cheat :
Level select:
Select "Sonic & Knuckles", choose any character, and play "Angel Island". Jump and hang on a swinging vine. Then, press [Left] [Left] [Left] [Right] [Right] [Right] [Up] [Up] [Up]. A sound will confirm correct code entry.
Sound test:
Enable the "Level select" code. Restart the game using the option under the "File" menu. Press [Down] [Down] at the title screen.
Screen shot:
Press [F9] during game play.
Super Sonic:
Collect all seven emeralds, then accumulate fifty rings or a single bonus. Then, quickly jump twice in succession.
Sonic special stages:
Enter the following codes on the special stage screen.
