Bobasa is a character in the Yu-Gi-Oh! manga.
Bobasa is a member of a tombkeeper's clan that protects the Millennium Items. He has the Scales and the Key. Bobasa protects the items by placing them on his abnormally-shaped chest and locking his clothes.
Bobasa appeared before Dark Yugi and his friends outside of Domino City Museum under the orders of Shadi. He helped Yugi Mutou, Katsuya Jonouchi, Anzu Mazaki and Hiroto Honda enter the World of Memories by entering the Millennium Puzzle. He later transformed into his other self, Hasan, the spirit of the Millennium Stone.