I did an interpretation of a very cool glitch in POKéMON YELLOW. (Very old oekaki, I think I based her on furies or something roman)

It's a strange one: it's just a block of messy red pixel in a black square. When you send it into battle or met it, it's cry can be so long and distorted that it freeze or lock the game. It learns like Hyper Beam at level 7, it's ridiculous. I battled with my Female Symbol (in game: ♀ ) an other female symbol in Virdian Forest and the bug catcher sprite transformed into Lance. He was still saying: "Shh! You'll scare the bugs away." Creeper.