Super Mario Maker 64 exists, thanks to a new ROM hack

Nintendo’s Super Mario Maker series of games lets you create your own sidescrolling platformer levels using sprites and 3D objects from several entries in the franchise. It’s created a deeply devoted fan base, but it’s only ever let you make sidescrolling levels. Now, a pair of fans have changed that with Mario Builder 64, a new way to make and play your own Super Mario 64 levels — and do so on Nintendo 64 hardware.

It’s technically a ROM hack...