Gastromon is a slug-like kaiju that appears in The Dawn of Monster Kid and The Dawn of Monster Kid: Dimensions. He is one of the lifeforms evolved from Max's blood and one of his pets.
Idea Wiki
Gastromon is a slug-like kaiju that appears in The Dawn of Monster Kid and The Dawn of Monster Kid: Dimensions. He is one of the lifeforms evolved from Max's blood and one of his pets.