Full Egg

From the Super Mario Wiki

Full Egg is an item that a Yoshi can use in Super Mario World 2: Yoshi's Island. It is a simple item, and just refills the players egg count up to 6. It can be acquired just like any other item. This item can be acquired by completing Bounus games or Bandit Games. This item is an egg with FULL writen over it.

Super Mario World 2: Yoshi's Island Items
10 Point Star • 20 Point Star • Blue Watermelon • Full Egg • Magnifying Glass • POW Block • Red Watermelon • Watermelon • Winged Cloud