Rayman (GBC)

99 Lives:
Pause and press A, Right, B, Up, A, Left, B, Down, A, Right, B, Up, A, Left, B.


World map:
Pause and press A, Left, A, Left, A, B, Right, B, Up, B, A, Left, A, Down, A.


Full energy:
Pause and press B, Right, A, Up, B, Left, A, Down, B, Right.


All powers:
Pause and press Right, Left, Up, Down, A, Up, Up, Down, Down, B, Right, Right, Left, Left, A.


Unlock All Levels:
Enter = ! g M c 0 v ( 7 = at a password.