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A Yellow Egg is a Yoshi Egg first found in Super Mario World, where it merely hatches into a Baby Yellow Yoshi. Starting with Super Mario World 2: Yoshi's Island, Yellow Eggs play a much different role: when a Yellow Egg hits an enemy, one coin prevails from the said egg.
Yellow Eggs can be acquired if Yoshi throws a green Yoshi Egg that recoils once from the wall. Yellow Eggs can also be obtained from yellow Egg Blocks, though unlike the green Egg Block, Yoshi only gets one egg.
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