Nintendo Virtual Boy [1995] 

"The Virtual Boy, our RISC-based, 32-bit system, produces a 3-D experience not possible on conventional television or LCD screens. The system has two high-resolution, mirror-scanning LED displays. Its unique design eliminates all external stimuli, totally immersing players into their own private universe with high-resolution red images against a deep black background."
Nintendo

Virtual Boy is a stand-alone, table-top unit that doesn't connect to a television screen. The creator of the GameBoy had the brains of the idea, so the possibilities were there. But, it was poor. The technology on paper looked great, with a 32-bit processor (same as used in the PC-FX) and 16-bit stereo audio to bring you into a new age. But it just ended up with a red-screened version of the existing Game Boy.

Other problems included the possibility of altering the user's eyes (as mentioned as a warning on the box).