Darkstalkers Chronicle: The Chaos Tower

[LunaMoo]

I heard of it, but there are many generations of "icore" processors, each with slightly different performance and the oldest ones are pretty poor compared to the latest ones running at same clocks not to mention new ones are usually clocked higher and go above 4ghz without overclocking.

No, requirements aren't ridiculous, cpu's aren't build to render graphics, they are not optimized for it and as such it takes a really fast cpu to render game's graphics especially something like a fighting game with many layers and tiny sprites, on the other hand rendering graphics via software rasterizer makes certain effects and tricks pretty easy to display compared to hardware rendering apis where the same thing might be impossible.

And again no, this game never worked correctly outside of software rendering, the hackish option was just showing everything, it was a mess and far from "ok", just because it made the game playable for some desperate people by showing characters doesn't mean it was worth keeping, that option was on a to-be-removed list for far too long, but just like other dangerous hacks that made some people happy in the past it had to go and will never return.

You are free to use outdated PPSSPP version if using the broken hack makes you happy, PPSSPP was not made by m$ and does not include forced updates.

Edit: Oh and also you're not correct by calling it "just a PSP game", it's actually a very old game from different console generation which was at least partially emulated to run on PSP, but it does NOT work like a psp game and certainly wasn't written for PSP which causes all it's rendering problems.