"Hey don't battle him, he'll glitch up your game!" - Pokemon Red and Blue
Well, I've always been facinated with glitches- and my first glitch I loved to mess around with was missingno! At the time, I just thought it was the greatest thing in the world to be able to depixalate every trainer/ pokemon you encounterd. I actually had a funny, yet strange battle with someone.
I played against one of my friends with a few missingnos. He was supposed to send out a mew at the start of the battle but it ended up being an upside down, backwards, pink pidgey. and then there was the weird "Come back ☼☺☻♥! Go •○♣♦1as86!" or something random. Of course, midway through the battle I had unplugged the link cable and that really messed things up. In the end, I screwed up both our games, but I had fun in the process mrgreen
