Crustacion

Crustacion is a Crab worm like Decepticon big time Robber in season 3 of Transformers Robots in Disguise. He shoots the eyes of lasers which can melt the ice. His vehicle mode is a tanker truck. Crustacion speaks with a slight Scottish accent.

History
Crustacion broke into the Treasury Building, stealing a fortune in Shanix which he took to Earth to conceal. He was apprehended in Antarctica by Windblade, who stored him in a cache along with some other supplies. Some time later, the ice thawed, freeing him from his stasis pod and he began searching for the Shanix he'd stolen. Spying a nearby human base, he spent some time searching through it for his loot, and it was here that Bee Team found him. After fighting them off, he managed to find the rest of Windblade's cache and started drilling into it with his optic blasters, however it only contained energon cubes and a grenade. The Autobots caught up with him, causing him to turn tail and lead them on a chase through an ice tunnel which terminated in a dead end, at which point he brought the tunnel down on them. His search next led him to the sea floor, where his attempts to drill downwards were interrupted by the arrival of Bumblebee, Drift and Grimlock — though the first two proved no problem, the Dinobot defeated him soundly. The Autobots later took him back to the scrapyard.

Trivia

 * Crustacion reuses Ped's character model, giving him a different head. Unlike Ped, he doesn't seem to be bothered by his own body-type and is described by Russell as a "Shrimp-Bot", as opposed to a "Bot-worm".
 * The synopsis for "Defrosted" released through TV listings services referred to Crustacion as Prong, presumably an early working name for the character.