This game is also available on N64.
Find Wario's door and you will see a glass window of Princess Peach next to it. Jump through it and you should enter a secret level. Slide all the way down and collect the star at the bottom by breaking the box.
press A to grab them with Yoshi's tongue and
spit them out at him by pressing A again.
and press L in midair to crush him. This might take a while.
Note: Do not quit the level as the game will reset the coins and you will have to find them again.
Enter the level and find the Mario red hat marker on the minimap and find the goomba/enemy wearing the hat and kill it. You should now turn into Mario. DO NOT let an enemy hurt you or you will change back to Yoshi(if that happens find another marker.) Go back to the part of the level near the start and pink bombs and you will find a large Koopa Troopa. Talk to him and he will challenge you to a race.
1st Lvl BOB-OMB BATTLEFIELD
*Collect all silver stars
*Win Koopa Troopa Race
2nd lvl-Whomp's Fortress
3rd Level-Jolly Rodger Bay
*Get the star from the platform above near the north-west side of the water.
*Sneak into the boat, open the treasure chest and break open the box.
* Get the star from the eel's tail on 2nd time on that level.
Secret Castle Stars
*Go up the castle stairs and open the number one door to the east and jump through the Princess Peach portrait near Wario's door and
slide down the slope.
4th level-COOL,COOL MOUNTAIN
*Slide all the way down the cottage chimney once
*Slide down the cottage chimney again and win the race.
Open the treasure chest and get the air bubble and open the box.
For the second time, grab the star at the end of the eel's tail.
For the third time, find the hole in the caverns/cliffs under the water and pass through.
Avoid the gombos and meteors and go round and open the treasure chests in the correct order.