"Did you know that the company behind the Bomberman and Adventure Island series made an MS-DOS clone, but it was for a 68000-based computer that had proper arcade-tier graphics and sound hardware in it? Yes, they were working with NEC at basically the same time on PC Engine and PC-FX, but the computer was a completely unrelated Sharp design. In addition to having better arcade ports than any other system at the time, it had a thriving doujin scene. One of these doujin games was an enhanced clone of Sega's version of Tetris, which inspired the creation of Tetris: The Grand Master."
For context, this was probably in response to the Sun 3, also 68k. Sun's foresightful motto was, "the network is the computer," which maybe explained more of the Sony effort.
It pairs a Cyclone V with dual-core ARM, a HDMI scaler and SD-RAM for latency.
It's just an incredible project, in breadth & depth.
I got into the MiSTer for the Amiga minimig core, watching the project develop has been really enlightening, for example, the wildly interesting MSX completely passed me by as a child in the 1980s.
A repairman that came to fix it took a look at it, and was like "is it even a computer?"
From that time, we still had a black NEC Ultralite by 2006. When I returned back to Russia in 2016, I got to know that parents threw it away. Again, that was an extremely expensive thing for early nineties.
Father liked to buy toys like that for mom on his business trips to Japan.
That hurt to read. They're quite valuable even today.
I was studying computer architecture ad university and the reference processor was the Motorola 68000. Needless to say, we had to do various kind of exsercises without having the thing running . The only thing the professors recommeded was an emulator, Easy68k i think, but it was super uncomfortable to use and it used to mess up jumps and condition evaluation (even in its own sample programs).
I ended up verifying the exercises using a Debian/68k virtual machine under Aranym. Needless to say, it was slow, but at least it was functional.
 Personal rant: it's "funny" how professor in the calculus classes in the first year expect you to "question everything" and not to "assume something is just true because the professor said so" but then you progress and have real-world topics and professors just wing it and say "meh, that's the reference processor for the course and for the exam, you are supposed to run samples in your mind or on paper, if you want to verify that what I'm saying is true get some m68k machine and run the code (good luck with that)."
If you want to see someone who lovingly restores and repairs vintage computers and actually gets them working again, check out Adrian Black on YouTube.
There's also typically one to play with at the annual demosplash competition at CMU.