The Sega 32X.
Before the PlayStation 4 Pro and the Xbox One X, there was an infamous add-on to the Sega Genesis. My friends and I would always joke about what a waste of money it was and the fact that it was likely a piece of junk. In an age where producing an upgraded version of a current console to sell to hungry consumers exists, Sega of the 1990s tried something bold and almost succeeded.
I was never on team blue, but in retrospect, it was either pretty cool or probably pretty disappointing arguing for blast processing. This time around, trying to be ahead of the curve proved to be disastrous for Sega.
Also, do check out more of the Gaming Historian, it’s a great channel filled with well produced mini-documentaries.