Mickey Mania: The Timeless Adventures of Mickey Mouse Cheats - Sega Genesis
Primary Collection of Cheats
Level select
Enter the sound test menu. Set the "Music" option to "Continue", "FX" to "Appear", and "Speech" to "Think". Highlight the "Exit" option and hold [Left] for approximately five seconds. A sound will confirm correct code entry. A level select menu will appear when game play is started.