Grimlock is among the strongest of the Transformers, possibly an equal to, or even superior to Optimus Prime and Megatron. In Tyrannosaurus Rex mode, his powerful jaws can snap virtually anything that comes between them. With his large jaws, it's sometimes hard to tell what Grimlock's moods are. This Transformers t-shirt shows Grimlocks moods, from "No Nice Dino!" to "Bash Brains!" to "You Ugly Too!"