This 80sTees.com exclusive Transformers t-shirt features an image of Megatron showing off his Energon Mace next to images of Starscream, Soundwave, and Shockwave. Megatron's Mace is a spiked head that is connected by a cord to his arm. When the leader of the Decepticons isn't using this weapon to show his dominance, he is deploying the Decepticons Starscream, Soundwave, and Shockwave to destroy the Autobots, which would allow the Decepticons to control the entire galaxy!