The Yoshi Egg is an item in A Koopas Revenge 1. It can be optained by defeating a Rainbow Yoshi. The egg can drop a powerup. It can either drop a feather, a koopa Shell, a fireflower or a 1-UP mushroom. Which powerup the player gets is completely random. In A Koopa's Revenge 2 there's an enemy which is based off of the Yoshi egg called Greg-Egg.