It's emulators all the way down (emulator is https://macintoshgarden.org/apps/silhouette, a Nintendo-internal SNES emulator for PPC)
Super Mario world doesn't seem to run, it hangs on the first text box and the start screen is all messed up
Mario Kart runs but the track doesn't display (probably because Mode 7 stuff isn't implemented) and the karts don't seem to actually go
Super Metroid! I couldn't skip the intro and this emulator doesn't seem to properly blank the screen, so unless something's drawn to it it stays white, but everything that does get drawn looks great