At a time when the Wii was being referred to within the industry as Nintendo Revolution. Am evocative title that made people wonder just what the Big N had in store, outside of the usual improvements in visual fidelity. Turns out that Nintendo opted to focus on a new way to interact with consoles as opposed the latest and greatest in graphics.
With the Wii going on to sell in the tens of millions as it kick-started a new motion-control phase. The below Tweet showcases an item that recently sold via auction in Japan for a prototype Wii controller that was compatible with a Nintendo GameCube.
Even in this early stage, outside of not being full wireless, the rectangular almost remote control design was in place.