Instant death:
--------------
During gameplay, press the L Button, Z Button, A and B simultaneously.

Yoshi colors:
-------------
White and Black Yoshis appear as Giant Eggs, but will hatch
after completing the level.

Black Yoshi:
------------
Hidden in Levels 2-1, 2-3, and 2-4.

White Yoshi:
------------
Hidden in Levels 3-2 and 3-3

Yoshi's color in Practice Mode:
-------------------------------
In the Trial Mode, pick the color of Yoshi that you want and
press Start and Z at the same time. Then press B to go back
and go to the Practice Mode, and you will have the color Yoshi
you chose.

Hidden message from Yoshi:
--------------------------
At the end of each and every Mini-Game, get enough for a heart
fruit and then eat it. After all the letters appear, put them
in the right positions, and you'll get a hidden message from
Yoshi.