The Blues Brothers: Jukebox Adventure (Game Boy)

The Blues Brothers: Jukebox Adventure
Developer: Titus Publisher: Titus Platform: Game Boy Released in EU: 1994 This game has a hidden level select.

A retitled port of the SNES The Blues Brothers game. Interestingly, while there was a previous The Blues Brothers for the Game Boy, that was a port of the computer game of the same name. Similar case with Battletoads (Game Boy) and Battletoads in Ragnarok's World.

Level Select

At the title screen, press A. The Titus logo will appear. Here, hold B and press Right, Left, Up, then release B and press Select 7 times. Now start the game, and at the stage number screen, press Select to choose a stage (up to 17) and A to play it. Going past stage 17 skips to the ending.

(Source: cah4e3)