Posted in Reviews That’s Just Prime: Transformers Energon Optimus Prime Pen Geek World Order August 7, 2017 Leave a comment Bert looks at another pen Transformer. This one is based on Energon Optimus Prime. Author: Geek World Order Related Articles Geek Talk Toy Review: TMNT Pizza Pop-Up Play Set That’s Just Prime: Transformers Evolution 2 Pack Optimus Prime TV Review: Gotham – Pilot That’s Just Prime: Action Master Optimus Prime Toyhax Upgrade Set