System: Sega Genesis
Game Title: NBA Showdown 94 (UE) aka NBA Pro Basketball '94 (J)
The Japanese Sega Genesis game NBA Pro Basketball '94 contains a hidden Sound Test. To enter the menu, press Start to pause the game, and then press B to enter Coaching Options. With the following Game Genie code enabled, press down once to highlight Sound Test.
Sound Test Unlocked Under Coaching Options (J)
Sound Test Unlocked Under Coaching Options (UE)
Note: The code only works while the option "playcalling" is off.