First Look at OPTIMUS PRIME in Transformers: Age of Extinction - Empire Magazine

+ Angry Guard Dog: Underbite resembles some manner of hyper-stylized mecha-bulldog.

+ The Big Bad Wolf: Steeljaw, who has a lupine-like appearance.

+ Frogs and Toads: Springload, a Decepticon with frog-like features.

+ Giant Enemy Crab: Bisk, a Decepticon with a distinctly crustacean look, including eye stalks and snapping claws. Clampdown, on the other hand, is more of a literal example, lacking Bisk's humanoid shape and looking like a straight-up robot crab.

+ Giant Flyer: Filch, a giant mechanical bird Decepticon that is strong enough to lift an RV and two Autobots.

+ Giant Spider: Chop Shop,...