Nintendo made waves in the gaming community when it debuted its Wii console, one of its most interesting game systems to date. What made the console so unique was its motion-controlled Wii Remotes. Perhaps in a parallel universe, the Wii Remote would have debuted even earlier, as prototypes actually exist of versions built for the GameCube.

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Source: Hot Hardware – Nintendo Wii Remote Prototype For Nintendo GameCube Appears At Japanese Auction