The Black Hole Glitch
By going past the creation limit that Nintendo sets for Mario Maker 2 players in the course creation mode, you can make a black hole appear that makes objects and items act very differently from how they’re supposed to act.
You can overlap pipes, make enemies appear out of thin air to troll players (don’t do that), make arrows spin out of control, stack multiple fire bars over one another and many more crazy things.
The process isn’t too difficult to pull off, but you can watch the video up above that comes from Icay if you want more details.
Unfortunately, you won’t be able to save any created levels that have this glitch in it as it will be marked as a corrupt stage.
But, you can still play the stage in the creative mode and try it out for yourself or subject your closest friends to the worst kind of torture –the Mario Maker kind.