System: Sega Genesis
Game Title: Warrior of Rome (U) aka Ambition of Caesar (Caesar no Yabo)
The Sega Genesis game Warrior of Rome contains a hidden Sound Effect test in it's BGM Menu. While in the menu, use the following Pro Action Replay code to highlight the hidden option, then press A to select it. After entering the Sound Effect menu, turn the PAR code back off.
Sound Effect Menu