Saved Data, Sleep Mode and Yoshi Mode cheats for Super Mario Advance

Saved Data, Sleep Mode and Yoshi Mode

Clear ALL Saved Data:

Press L + R + A + B + Start + Select (when turning on the GBA).

Unlock Sleep Mode:

Select + R (Select + L to deactivate)

Unlock Yoshi Mode:

Complete Super Mario Brothers 2 (you don't have to collect ALL the red coins). In Yoshi mode you have to find 2 Yoshi eggs which are hidden behind the potion doors. There are 2 eggs for each stage.

We have more cheats and tips for this game here, Super Mario Advance cheats