Ground Urchin

A Ground Urchin is a variant of Urchin that appears in Super Mario Galaxy and Super Mario Galaxy 2. They look like normal Urchins except that they are red.

Super Mario Galaxy
They appear in Freezeflame Galaxy. They stay in one spot, and will chase Mario when they notice him. They can be defeated with a fireball.

Super Mario Galaxy 2
They reappear in this game behaving exactly like in the previous game. They only appear in Battle Belt Galaxy.