Trolley Lab Assistants are variants of lab assistants that appear in Crash Bandicoot: The Wrath of Cortex, exclusively in the level Tsunami, where they are disguised with a beard and a tan robe. There is no way to defeat these lab assistants unless Coco runs right into one while invincible, otherwise costing her an Aku Aku mask. They also appear in the tsunami chase in the level. Only four of them appear in the level, and therefore the entire game. This is the third lab assistant variant that has a vehicle, the second being Plane Lab Assistants, and the first being Racer Lab Assistants.