“The. Damn. Thing. Had. A. Heartbeat! I am not over-reacting or stressed! It really did! That thing is gross! It kept wiggling!” - Arcee after the mess was over.

Yeah I've wanted to redraw this screenshot for a while. Galvatrons cannon is technoorganic, like him, and almost it's own separate living being, if it were alive. It does have a heartbeat.
Expressions are fun.

Episode Source: The Dweller in the Depths.