Yoshi's Island: Super Mario Advance 3 Unlock Hard Mode
If you get 1000 points in a world a star will appear on the 'Select Game' screen. Once 5 stars are earned it unlocks Hard Mode.
Unlock Secret Ending
If you get 1000 points in a world a star will appear on the 'Select Game' screen. Once 6 stars are earned it unlocks a secret ending.
Bonus Games
At the level select screen, hold SELECT and press L, L, B, A, R to unlock bonus games.
Unlock Six Secret Levels
Beat the game and unlock 6 new levels.
Seven Lives
If you get a world score of 777 you will get 7 lives.
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