Kishin Douji Zenki: Battle Raiden

Kishin Douji Zenki: Battle Raiden
Developer: CAProduction Publisher: Hudson Soft Platform: SNES Released in JP: August 4, 1995 This game has a hidden level select.

Level Select

In the config menu, play songs 009, 003, 006, and 009 in the music test. Start the game, pause, and press L+R+X to warp to the level select. To choose a level, stand under its number and press B. Level numbers containing a "B" are the bosses.

To return to the level select after selecting a level, pause and press L+R+X again.

(Source: super-famicom.jp)