OK SO the bio may be a little long but here is the obliticous version of shockwave. and yes the head lights up. Shockwave was once a medic in the Decepticon army and he was proud of it. He would heal any Decepticon because he new Megatron needed a strong army. Durring a battle at Iacon, Shockwave was extremely damaged directly after doing a patch job on Blitzwing. Shockwave was abandoned by his comrade. For months many thought Shockwave has perished. In truth he drug himself back to his lab and began to rebuild himself. He covered is scared face with a dome that also keeps him protected from shrapnel. After rebuilding himself into a war machine he began to work on his own army THE OBLITICONS. Megatron learned Shockwave was alive and believes that he is still a loyal Medicon.