In 1995 Nintendo asked players to press their faces into a heavy tabletop periscope and stare at glowing red lines while mirrors hummed against their noses. The Virtual Boy sold about 770,000 units and was discontinued in Japan within six months. This episode follows the hardware from its origins at a Massachusetts company called Reflection Technology, whose scanned linear array display Sega passed on, to Gunpei Yokoi's decision to adopt it under his philosophy of lateral thinking with withered technology.

It explains why color was abandoned, how a 1995 Japanese product liability law and warnings from eye specialists turned wearable goggles into a stationary stand, why the N64 pulled resources away, and what shipped: a 32-bit NEC chip, oscillating mirrors, mandatory rest prompts, an unused multiplayer port and a forward-thinking dual D-pad  ...