Lion Mask, called The Hedgehog in the English dub, is the main hero of the manga Ayaushi!Lion Mask. Doraemon and his friends love to read that manga. The manga is written by Funyako Funyo but currently it is written by Doraemon. There is also a movie of him.
He wears pants, blue boots and blue gloves. He also wears a Lion Mask so his face is unrecognizable.
In the 1979 anime episode Suneo's Romance, in a movie, he wears a wears a red jumpsuit with a marking on the center, and a black underpant over the jumpsuit. His boots and gloves are white. He still retains his Lion Mask.