Challenge mode:
To unlock Challenge mode, get over 3,000 meters in Endless mode.
Time Attack mode:
To unlock Time Attack mode, get over 300 points in Score Attack mode.
Balloon mini-game:
To unlock the Balloon mini-game, get a high score in all four levels. Balloons will now appear at the title screen. Pop a balloon to begin the mini-game.
Yoshi colors:
Unlock the following colored Yoshis by performing the corresponding tasks:
COLOR – HOW TO UNLOCK
Purple Yoshi – Finish Challenge mode with no points
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
White Yoshi – When playing in marathon mode, get a Black Yoshi. After that, you will have a random chance of obtaining a White Yoshi on the switch off. White Yoshi gives you unlimited eggs until the next time you pass Baby Mario onto the next Yoshi.
Alternate high score icon:
To unlock an open mouthed Yoshi icon, get a high score using only one attempt from the Baby Mario level to the Yoshi level.
Toy Room completion marker:
Collect all toys and the Toy Room 1 and Toy Room 2 options will be preceded and followed by roses to mark that status.
Tickle Baby Mario:
Wait at the end of Baby Mario level. Baby Mario will appear on the touch screen from the top screen. Tap Baby Mario to tickle him.
Marathon mode:
Draw a giant never ending bridge from the beginning of the ground part to when you switch Yoshi. Then, just draw another bridge. It also helps to draw another bridge above you to not get hit from air monsters.
Balloon popping mini-game:
To easily get the high score in the balloon popping mini-game, pop two or more of the same color after the other. Doing this could get your score up to 150 points.