Super Mario World 2: Yoshi's Island
Hold Select and press X(2), Y, B,
A on any stage select screen. The bonus game will begin
when Select is released.
Enter world 4-1 find the two long pipes that are hanging upside
down. Kill the Piranha Plants, then swallow Shy Guys until accumulating
six eggs. Grab a Koopa Troopa, and stand on the pipe that previously
held the lower Piranha Plant. Spit out the shell between the two
lower pipes. As the shell bounces back and forth, throw away an
egg. Shy Guys will appear from the other pipe and will be hit
by the shell until extra lives appear.
Six stars will appear on the title screen if a perfect score
Enter SVHYO as a password.