Botsusan is the Japanese fan nickname of a character design from the scrapped Kirby for Nintendo GameCube. It can be seen on page 117 in the 20th Anniversary Hoshi no Kirby Pupupu Taizen.
Botsusan has large, black and white striped horns emitting dark flames. The character also has angry yellow eyes hidden behind a cloak, a shadowy body, lots of jewelry, and floating skeletal hands with red fingernails.
The design shares similarity with Traitor Magolor from Kirby's Return to Dream Land.