Fatty Puffer is the third boss in Kirby's Return to Dream Land. He serves as the boss of Onion Ocean and holds the Lor Starcutter's left wing; unusually for a water-themed boss (but similar to Fatty Whale), he is not actually fought in the water, although he does spit water for several of his attacks. When the players first enter Fatty Puffer's arena, they see a mass of coral on the floor. When they approach it, Fatty Puffer will emerge, angered, and the battle commences.