You will need to install a user script manager extension to install this script.
No, it does not. This does make prices show as Free, but you cannot actually own them.
Just to troll your friends, and make people think you can get anything for free.
Just simply open the Avatar Shop and choose something that costs Robux, then click Buy.
You can view your profile and there will now be a cool "badge" :kirbysunnies: