Prior to the internet, glitches in games (that could be repeated) were insanely popular. It felt like you had a special secret that few people had: breaking a game programmed by gods. Of course, I learned about glitches from Nintendo Power. Still, breaking a game could often be more fun than trying to win it outright. And there’s nothing more fun than trying to enter Super Mario Bros’ minus world, if your idea of fun is trying to make awkward jumps forty-eight times in a row while the clock of death is winding down.

Compared to other glitches in NES games, your reward is more than just seeing something funky. You actually get to see an underwater level not in the actual game. It’s never-ending and there’s no way to escape it, but nobody goes to minus world on accident.