Optimus Prime is a new permanent unit in Squad Buster, coming from the Transformers series. This game features Optimus Prime in three forms: Baby, Classic, and Super. He is a giant defender who attacks opponents with his punches and can withstand damage for a long time due to his high defense stats.

In his Baby Form, he uses punching attacks. Once he evolves into his Classic Form, he attacks enemies with his Energon Axe weapon. When he evolves into his Super Form, he unlocks his ultimate skill, which mainly serves as a healer to recover his squad’s health.