Female/male Yoshi

To make your yoshi female press "B" and "C" up at the same time this will put a bow on the yoshi's head. To turn it back to male press "B" and "C" down and the bow will vanish.

Instant Death

During gameplay, press the L Button, Z Button, A and B simultaneously.

Snow

In the Poochy and Nippy stage, go to the location where all of the birds with the bombs are found. Get seven melons or get a heart and it will start snowing.

End The Game With All Yoshis Alive

Enter a level in story mode, then select a block 1-4. As soon as you enter, turn it off then back on. Note: This might not work with black or white Yoshis.

Pop Bubbles Without An Egg

You can pop bubbles without an egg by jumping or bumping it.

Egg Restore

If Yoshi is low on eggs, is not next to a egg block, and super happy, prepare to fire an egg but cancel that action. Yoshi will put the egg into the inventory and allowing it to be kept.

Mini-Eggs

Shrink in "Piranha Groove" (level 4-4). Hit an egg block while shrunk to create a very small egg. Take it while still shrunk. The egg will remain small as you return to normal size. Note: The mini-egg is still as powerful as the full- size version.

White Shyguy Locations

Level 1-1

Get to the second part with Poochy. Go straight on the first two splits in the 
roads. Go up on the third one. shoot the "?" ball and a Shyguy will appear. 

Level 1-2

Go the second part and find 4 white and blue moving platforms. The "?" box there 
contains the Shyguy. 

Level 1-3

Get to the third part and shoot the flying "?" ball. The Shyguy will appear. 

Level 1-4

Get to the top of the building and get the umbrella. Float down on the right of the 
building. Find the cannon that shoots straight up with two blue blocks underneath. 
Destroy them and walk in to find a third blue block holding the Shyguy. 

Level 2-1

Get to the second area and fall down past the "?" balls. Hit the blue blocks to the 
right and get to the other side of them. Get on top of the three blocks near them 
but not touching them. Hit the very bottom one and a Shyguy will appear. 

Level 2-2

Enter the blue tunnel after the second ball ride. There should be a red "?" ball 
floating in the sky. It contains the Shyguy. 

Level 2-3

Look for Poochy and sniff in his spot. When Yoshi waves his hands, pound the 
ground to release blue and white platforms. Climb up them to find a tunnel. Look 
for three blue blocks on the right guarding a heart. One of the blocks contains the 
Shyguy. 

Level 2-4

Look for a sign that points off the screen. There should be a blue box at this 
location. Walk off the screen and Yoshi will come out of a pipe. Hit the red "?" ball 
on the right to reveal a "!" ball. Use the ball to jump over the wall. Hit the 
next "?" ball for the Shyguy. 

Level 3-1

Ride the big green dragon until you find a "!" switch. Hit it with an egg to reveal 
clouds. Go up into the clouds to get to the tunnel. Find Miss Warp 3, four eggs, a 
switch card, and a "?" ball. The "?" ball will contain Shyguy. 

Level 3-2

Look for a banana and a melon separated with a platform. The melon should be 
near a Turbo Tulip. Go to the far right with your back against the wall. Eat the 
Tulip and launch yourself up to the first section by pressing B when Yoshi arrives 
there. Hit the "?" ball and the Shyguy will appear. 

Level 3-3

In the section with Miss Warp 3, go directly to the bottom pot. Approach the first 
big blue "?" box and smash it to release the white Shyguy. 

Level 3-4

Go to the second part and locate the boomerang birds. Jump over the pit and look 
for blue blocks. The Shyguy is in one of them. 

Level 5-3

After you pass the rain clouds you will see a "?" mark nearby, to the right. Pop 
the bubble and the Shyguy will appear.