Sunigator Shu is a character from the anime and manga series Kinnikuman, which revolves around wrestling and superhero themes. Sunigator is a Choujin, a superhuman being, and is known for his unique crocodile-like appearance. He has scales, sharp teeth, and a tough exterior, resembling a humanoid alligator. Sunigator Shu plays the role of a villain in the series, facing off against the protagonist, Kinnikuman, in wrestling matches. His character adds depth to the series by presenting challenges and obstacles that the heroes must overcome, contributing to their development and the overall storyline.