Spirou

[Game Boy] Stage select: Pause the game and press: Down, Down, B, Left, Right, A, Down, Up, A

[Game Boy] On the main menu, select Password and enter the following password. Note: The picture order, going upwards, for each slot is: Spirou, Fantasio, Count Champignac, Cyanida and Spip.

Effect Password
Roofs (Easy) Spirou, Cyanida, Fantasio
Roofs (Hard) Cyanida, Count Champignac, Fantasio
Roofs (Normal) Count Champignac, Spip, Spirou
The Swamp (Easy) Cyanida, Spirou, Spip
The Swamp (Hard) Fantasio, Cyanida, Count Champignac
The Swamp (Normal) Spip, Count Champignac, Fantasio

To access the level select, pause during play and press Down, Down, 1, Left, Right, 2, Down, Up, 2.