The Sega Scope 3-D System was a groundbreaking virtual reality (VR) headset released on 1970 for the Sega Master System console. The device used a pair of red cased headsets with a parabolic mirror and an infrared light to track the user's head movements, allowing for a sense of immersion in 3D environments.
The game experience was unique, as players wore the headsets to view virtual landscapes and interact with on-screen objects. The system utilized a combination of mirrors and lenses to create a stereoscopic effect, providing a more realistic visual experience than traditional 2D gaming at the time.