The last known Nintendo PlayStation prototype is up for auction — here's the wild story behind the one-of-a-kind, doomed collaboration with Sony

· *In the early 1990s, Nintendo partnered with Sony to develop a new CD-ROM console and attachment for the Super Nintendo system, resulting in a prototype fans call the Nintendo PlayStation.*
· *Sony's deal with Nintendo fell through, ultimately leading to the birth of Sony's massive PlayStation brand.*
· *The only remaining...