Transformers Bumblebee Energon Igniters Nitro Series Barricade. Energon is the lifeblood of Transformers robots. Now you too can harness the Transformers energy source with Energon Igniters figures. This Bumblebee Energon Igniters Nitro Series figure transforms between robot and police cruiser modes in 10 steps. Then plug the Energon Igniters core included in pack into the vehicle and push down to unleash driving action. This barricade figure stands at 7-inches.