|First appearance||Super Mario Bros. Wonder (2023)|
Erins are king oyster mushroom-like enemies that are first introduced in the course Bulrush Coming Through!. They vary in height, and when stomped on, they take out any other enemies behind them as they fall off the screen, as well as being able to collect any collectibles in its path.
Purple variants also appear that turn around when facing a ledge.
|Super Mario Bros. Wonder||G:/romfs/Model/EnemyErin.bfres.zs||Erin||Clipping of「エリンギ」(eringi, king oyster mushroom)|