The hippopotamus is a character that appears in the Sonic the Hedgehog series. Not much is known about them, other than that they're an anthropomorphic hippopotamus and a student of Sonic's schoolhouse.
Appearance[]
The hippopotamus is a child wearing a red outfit with black-colored buttons.
Game appearances[]
Sonic's Schoolhouse[]
In Sonic's Schoolhouse, the hippopotamus makes an appearance as one of the playable characters.
Gallery[]
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