Modder puts Super Mario 64 on PS2, hacks in co-op, and adds online multiplayer with the N64 version, all through the power of Sony's secret PS1 chip: "It works much better than I thought it was going to"

Mario.

Adding local co-op to Super Mario 64 would be an impressive feat. Taking the multiplayer online would be equally astounding. Getting the classic platformer running on a PS2 would be another marvel. Doing all three at once? Now that's the stuff of modding legend, and it's exactly what YouTube Carl Does Tech Things has managed to pull off.

Getting the classic platformer running on PS2 in the first place was the easy part, it turns out, since that port is one of the many that exist in the wake of Super Mario 64's decompilation. But once Carl starts breaking down his efforts to add multiplayer in the video below (thanks, Retro Dodo), it gets pretty mind-blowing.