Aku Aku is a fictional character from the popular video game series Crash Bandicoot. He is a protective spirit who guides the main character, Crash Bandicoot, throughout his adventures. Often depicted as a wooden mask with a friendly face, Aku Aku provides players with helpful advice and power-ups. In the games, Aku Aku serves as a shield against enemies and hazards. When players collect Aku Aku masks, they gain temporary invincibility or extra lives. His character embodies themes of friendship and support, making him a beloved figure among fans of the series.