Extra levels:
Unlock the following Extra levels by getting 100 points in each of the eight stages in the corresponding Worlds. To do this, you must collect 20 Red Coins, 5 Flowers, and 30 Stars:
Extra 1 – Get 800 points in World 1
Extra 2 – Get 800 points in World 2
Extra 3 – Get 800 points in World 3
Extra 4 – Get 800 points in World 4
Extra 5 – Get 800 points in World 5
Bonus characters:
Unlock the following characters to ride on Yoshi by reaching the corresponding Worlds:
Baby Bowser – World 4-5
Baby Donkey Kong – World 2-1
Baby Peach – World 1-5
Baby Wario – World 3-5
Coin bonuses:
Unlock the advance version of the following mini-games by collecting all coins with a baby’s face hidden in the corresponding Worlds:
Hard Bouncy Maze – World 3
Hard Egg Toss – World 5
Hard Flutter Challenge – World 2
Hard Speed Eating – World 4
Hard Tulip Shooter – World 1
Time Trial mode:
Beat the game to unlock Time Trial mode. Enter the “File” menu and select your completed game file, which will have a star icon and “Clear!” on it. “Time Trial” will appear in the bottom right corner where the question mark used to be. Time Trial mode features five extra levels and the ability to play as a black Yoshi.