15 Game-Breaking Glitches and How They Affected One’s Progress

MissingNo – Pokemon Red and Blue

The most well-known glitch in Pokemon history, MissingNo could be found while surfing near Cinnabar Island. In battle, it had a glitched-out sprite which could take on different forms, depending on the player’s name. Catching him could help duplicate items like Masterballs and Rare Candies, leading to easy level-ups and capturing any Pokemon without trouble. Unfortunately, it had some…side effects. NPCs and environments would start glitching out, and your save data could become corrupted. Catching MissingNo alone corrupts your Hall of Fame data, making you wonder if it’s worth the risk.