The "oof" sound effect wasn't made by anyone at Roblox; it was actually made by a man named Tommy Tallarico. Tommy has worked in the video games industry as composer - meaning he made the music ...

In 2020 an agreement was reached between Tommy and Roblox, which meant that anyone making a Roblox experience would have to pay $1 (around 83p or 100 Robux) to be able to use the sound in their game.