Final Fight 3 (NES)

Hidden JY Logo
Pressing Down, Down, Left, Up, Right, Left, Up, Down on the title screen will trigger a hidden JY logo screen with the common full-screen logo. The only way out of it is to reset the game.

Dip Switches
As with several other pirate games, Final Fight 3 uses a PCB with a DIP switch on it, which changes some aspects of the game's appearance. The two titles contained in this game are Final Fight 3 and Garou Densetsu Special, which has cheerier music and no cutscenes. The DIP switch can be toggled in FCEUX by resetting the game (note that other emulators may handle this differently).