Oculus founder builds a VR that can actually kill the user in real life. The set starts of as a Meta Quest Pro, but to make it lethal they've added 3 explosives to the top of the set. The explosives are set to explode when the screen shows red at a certain frequency, killing the player in real life.

https://arinsider.co/2022/11/25/the-science-behind-the-vr-headset-that-can-kill-you-in-real-life/#:~:text=It%20starts%20as%20a%20Meta,red%20at%20a%20specific%20frequency.