I got the PS1 mini in and holy shit, unmodded this really is total crap emulation.
The 2d looks incredibly blurry, like running the bad CRT filter on the Genesis mini. Audio levels are all over the place (Mr. Driller is fucking loud), Toshinden is the ...European version?, the only way to access the menu is on the hardware, no way to access it from the controller. Zero emulation settings options, 1 save state that I don't think you can actually save? It's just like a temp spot from where you quit?
Yeah, wow this is bad. I can see why it bombed and it makes me appreciate these other mini consoles more and the small features in them to make them more playable.
Will hack it later, hopefully that will improve it a lot even just for base emulation/interface for these same titles.