When you preorder High Moon‘s Transformers Fall of Cybertron from GameStop, you will get a code to unlock the G1 version of Optimus Prime! You will be able to play as G1 Prime in both single and multiplayer modes. In addition, you will receive codes to unlock Megatron’s and Shockwave’s generation one guns.
You can reserve in store as well as online at their website. Transformers Fall of Cybertron rolls out on August 21st for the XB360, PC, and Ps3 systems.