Autobot Leader - Optimus Prime | Costume-Shop.comTransform Playtime! Let your little hero take charge and save the day with the Transformers Optimus Prime Rescue Bot Toddler Muscle Costume from . This exciting outfit is designed for budding adventurers who dream of battling alongside the Autobots. The costume includes a jumpsuit with a built in muscle torso and arms to give your toddler a strong, heroic look, along with a soft Optimus Prime character headpiece that completes the transformation into