No, let me teach you all:
'M and Missing-No ARE DIFFERENT POKEMON. One has the Hex number of O,O ('M) and One has 256 (Missing-No.) Plus, I've caught 25 'M's and Missing-No's. And NOTHING Happened. Only glitch Pokemon with unknown Op codes Cause this. Don't worry, NOTHING BAD IS GOING TO HAPPEN. Plus, 'M and Missing-No. Were placed into the game because of Missing Pokemon data. If the Game boy didn't know which Pokemon to pull out on Cinnabar's coast, they come to help if missing Pokemon data is there, so the Game Boy can run somewhat smoothly.
Devon Of GameShark: Doctor Approved
This is not a drill: People are using GameShark codes incorrectly, THIS IS NOT A DRILL!! WE'RE DOOMED!
Not to worry, Doctor Devon is here to save the day! He's here to help the patients