Artwork of a Mega Gringill from Super Mario Galaxy 2
|First appearance||Super Mario Galaxy (2007)|
|Latest appearance||Super Mario 3D All Stars (2020)|
The large Gringills appear with the standard-sized Gringills in several Galaxies (usually near them or on an opposite side of them. They are lavender in colour, have two feelers on their lower jaws, and are found only in caves. They make a straining noise when coming out of their holes, and unlike a standard Gringill give a 1-Up Mushroom when defeated. These huge eels only appear in the Beach Bowl Galaxy, Sea Slide Galaxy, and Deep Dark Galaxy.