of a massive Decepticon known as Trypticon, who can use the powerful Dark Energon—a more dangerous and destructive version of Energon, the substance which powers all Transformers—to his advantage, while the Autobots try to defeat this new threat. While the game still features two different campaigns, one from the Autobots' perspective and one from the Decepticons', and the player may choose to play either of them, just like in War for Cybertron, the campaigns take place simultaneously rather than one after the other, and the plot is different from other versions of the game. Characters Not a playable character Plot Autobot campaign As the massive Decepticon Trypticon attacks the Autobots' capital city of Iacon, the Autobots attempt to fend him off. Sideswipe scours the blast site for Autobot survivors, rescuing an injured Ratchet in the process, while Bumblebee and Ironhide are sent to the Decepticon capital city of Kaon to retrieve intel on Trypticon. Though they are caught and imprisoned, they manage to escape with Air Raid's help, and Ironhide reports that Trypticon is spreading Dark Energon - which is poisonous to Autobots but not Decepticons - through Cybertron's core, making the planet uninhabitable for the Autobots. As Optimus orders the evacuation of the planet, Air Raid is sent into the planet's core to sabotage the Energon Bridge that feeds energy to Trypticon. Once he succeeds, the Decepticons lead a new attack against Iacon, while Bumblebee escorts supply convoys and Air Raid fights Decepticon Seekers led by Skywarp and Thundercracker, whom he defeats. Eventually, Trypticon is repaired and begins destroying the escaping Autobot ships, so Jetfire is sent to destroy the relay stations that transfer Energon into Trypticon. He is successful, and Trypticon crashes into Iacon, where Optimus leads a final attack against the massive Decepticon, finally killing him. Afterwards, Optimus leads with the spread of Dark Energon halted, the Autobots are able to remain on Cybertron and continue their war against the Decepticons. Decepticon campaign During Trypticon's attack on Iacon, Megatron scours ground zero of Trypticon's blast and hunts down the Autobot survivors, ultimately defeating Ratchet. Meanwhile, Starscream is sent to protect the Energon relay stations from orbital debris and succeeds, despite not enjoying any moment of it. While the Decepticons are busy attacking Iacon, the Autobots infiltrate their capital city of Kaon, but Soundwave and Barricade intercept the intruders. Bumblebee and Ironhide are captured, and the former is