Bad EGG

BadEGG

Effects
Similar to Missingno, BadEGG can freeze your game, erase your file, or mess up your Hall of Fame file(s).

Location
BadEGG can be found in the Johto region as an ordinary egg at first then hatches into another egg (supposed to be Togepi). It may also be encountered as a wild pokemon (the same as Missingno.) In Ruby, Sapphire and Emerald, It can be obtain only as an ordinary egg from the Day Care or in Lavarnder town. BadEGG can also be found in pokemon Diamond and Pearl by using the action replay code, steal people's pokemon.

= Hatching=

BadEGG will not hatch unless used with a cheating device. If you get a badEGG, the best thing to do is turn the game off. Some rare results of cheat hatching these BadEGGs are Fossil Pokémon, such as Anorith, Omanyte, Kabuto, Lileep, Areodactyl, and a one-time registered Beldum in Shiny Color, although a great result, it is advised not to try and hack your games.

= Reason=

Rumors say you get badEGGS because you cheat/hacked too much. This is confirmed.