Challenge mode:
Get over 3,000 meters in Endless mode.
Time Attack mode:
Get over 300 points in Score Attack mode.
Balloon mini-game:
Get the high score in all four levels. Balloons will now appear at the title screen. Pop a balloon to begin the mini-game.
Green Yoshi:
Score up to 60 points in a Baby Mario level.
Blue Yoshi:
Score between 60 and 80 points in a Baby Mario level.
Pink Yoshi:
Score between 80 and 99 points in a Baby Mario level.
[Dark Blue Yoshi:
Score between 100 and 119 points in a Baby Mario level.
Yellow Yoshi:
Score between 120 and 139 points in a Baby Mario level.
Red Yoshi:
Score between 140 and 159 points in a Baby Mario level.
Black Yoshi:
Score over 160 points in a Baby Mario level.
Bronze Yoshi:
Get over 10,000 meters in Endless mode.
Alternate high score icon:
Get a high score using only one attempt from the Baby Mario level to the Yoshi level to get an open mouthed Yoshi icon.
Unlock Mini Game
Balloon Popping Mini Game: If you get the top high score in each single player mode, you can click on the small balloons behind the main menu options.
