First off, listen to the sound effect when the game is loaded in the Taiwanese DOS RPG "Flame Dragon 2":
http://www.youtube.com/watch?v=FhCTMws3HZ8Keep that sound effect in mind. It is rather distinctive, after all.
Now, listen to the sound effect on the Mega Drive bootleg Samurai Spirits 2 when a game is started:
http://www.youtube.com/watch?v=7HURAFth88E#t=8sIt's pitched down, but... well, like I said, it is rather distinctive.
But wait, that's not all!
Remember Shenzhen Nanjing's Wii clone, variously known as the Wow, the Sport 6-in-1, and the MiniWi? Take a listen to
its Hua Rong Dao and Memory games. You might recognize a sound effect in there somewhere.