Overview
many guides have been created telling of how to play portal 2, but i have yet to see one that teaches how not to. this guide will hopefully fill that role.
instructions
step one: enable the developer console. to do this, enter the options either by pressing escape in game to access the in game menu, or at the title. navigate to the keyboard/mouse section, the option to enable the console should be there.
step two: press the ` key to open the developer console.
step three: type “unbind all” (without the quotes) into the console, and press the “return” key, also known as enter.
congrats!
you can no longer play portal 2