Pre-ordering the upcoming Transformers sequel from GAME will net players the G1 Retro Pack, which enables users to select the G1 Optimus Prime from the '80s animated show in single and multiplayer.
Copyright: ActivisionThe pack also grants access to the powerful G1-inspired Megatron gun and Shockwave Blast Cannon in the single-player campaign.
Play.com customers, meanwhile, will receive an unlock code for Swoop, the aerial Dinobot who transforms from a robot to a flying dinosaur.
Finally, ordering from unspecified independent retailers will gain the Bruticus skin for single-player, which sees your Transformer adopt the "rare and vivd" colours from the Bruticus toy line.
Transformers: Fall of Cybertron is the follow-up to 2010's successful Transformers: War for Cybertron, which is developed by High Moon Studios and published by Activision.
The game will take players through the end of the Transformers' civil war, leading to their exodus to Earth. It will include a new playable character in the form of fan-favourite Grimlock.
Originally due to launch on August 28 in the US, the game will now launch one week earlier on August 21. The UK's August 24 release date remains the same, however.
A PC version was recently confirmed by Activision, which will be identical to its console counterparts, releasing on the same day.
Watch the Metroplex trailer for Transformers: Fall of Cybertron below: