The VR headset that "kills you if you die in the game" is a real concept created by Palmer Luckey, the founder of Oculus. He designed a modified VR headset called the "NerveGear" as an art piece inspired by the anime Sword Art Online, where players die in real life if their in-game character dies. This headset is equipped with three explosive charge modules positioned above the visor, which can be triggered by a photosensor detecting a specific red screen flash in the game, leading to the destruction of the user's brain. However, this device is not a commercial product or widely used technology—it's a provocative demonstration and thought experiment rather than a practical or safe VR headset. Luckey himself has stated that it is "halfway" complete and has many risks and safety issues, and he has not used it himself. The concept raises ethical questions about the extremes of immersive gaming but remains essentially a dangerous art project or conceptual prototype rather than a real consumer device.