giving my retropie another look. Trying to figure out this shader business and oof. oooooffff.
So here's the thing, my pi3b uses picodrive via the Libretro extension thingy by default. Looking into it, there's two other emulators available, those being Genesis Plus GX, and the other being DGEN. I'm not sure which I should be using in actuality for just megadrive emulation, or which would give the best appearance because good lord I really want to be able to get something close to CRT quality.