Easter Eggs and Cool Glitches

[Chomp]

One time when playing my Pokemon Crystal version years ago when it came out I decided to go after Missingno... like every kid back then. I know everyone knows about Missingno and how it can screw up your game, but something cool happened with mine.

For some reason, it messed with my Feraligatr so that whenever I battled, my Feraligatr ALWAYS got exp. points as if it had an exp. share, even though it didn't. I could put the thing in my box and it STILL got points. He would get the full amount of points though as well as whatever pokemon it was I battled with.

The Missingno encounter still messed up other aspects like on occasion it wouldn't let me go to my box and symbols would appear everywhere instead or sometimes it wouldn't let me save, but nonetheless the file still worked for about a year before finally corrupting and I had to start over. It was pretty cool.