Prop Elevator

Prop Elevator

Overview

Prop Elevator is a glitch which allows you to gain momentum by interacting with a held prop. It's mainly used in Least Portals challenge.

Explanation

Normally, you're unable to interact with a prop you're currently holding, but the game can be tricked into keeping contact with that prop by grabbing it while pushing it next to a wall. This leads to a weird behaviour where the player can gain a velocity boost. The exact reason for this behaviour is unknown at this moment.