Bad eggs gone crazy
I've got a bad egg before on emerald from AR and gameshark what happened to me is they dissapered into pokeboxes and it said they will take a very long time to hatch aventully (ignore spelling) they hatched and some froze the game and some dissapered for good but they seemed to duplicate in the boxes odd I have also tried realesing them but it says you can't realise a egg so I started a new game.