This week a piece of gaming history was unearthed in the form of the SNES PlayStation. Images of a prototype console - badly yellowed, but identical to press images that cropped up almost two decades ago - appeared online, with the finder claiming that his father had rescued it from the scrapheap many years ago and was oblivious to its historical value. An unlikely joint venture between Sony and Nintendo, it's easy to see why these fresh images of a machine once thought to be erased from existence have created such a stir online. Today, Sony and Nintendo are rivals in the hardware arena, but back in the early '90s the companies clearly saw some benefit in working together.