Megalo is a shark that lives on Fish-Man Island. He is the beloved pet of Princess Shirahoshi and former pet of the Neptune Army. Megalo is a black shark with a white underbelly. He wears a shirt from the Criminal fashion line. He is several times larger than an average shark, approximately the same size as the Thousand Sunny, though he is still smaller than Neptune. His mouth is also large enough to cram Shirahoshi into it, but apparently causes him great stress.