PokéBase - Pokémon Q&A
1 vote

Bad Eggs rarely hatch and cannot be released, merely taking up space,
though there are methods of removing them—it is possible to trade a
Bad Egg away into another game, or remove it by cheating. - Bulbapedia

It says that it rarely hatches, but when it does, what comes out of it?

If I recall back from my days of hacking, it gives you a invisible, unremovable space in your team called '-----' that cannot be transferred to the PC or otherwise removed from its position. But I'm not 100% sure, as it may vary.

3 Answers

4 votes
Best answer

These are the quotes for gen 3 gen 4 and gen 5 respectively:
The Generation III games are the only games to actually make use of the term "Bad EGG". The string is used to identify Eggs that appear to have been corrupted. The Trainer Memo section of such Eggs' summaries invariably states that they are "A peculiar egg obtained in a trade." Such Eggs do not actually hatch unless prompted to with a cheat device. The bad egg can also be found while cheating at some parts.

In Generation IV, bad eggs are sometimes found by using cheats to capture your opponent's Pokémon. Bad Eggs also occur when the player uses a cheat device to catch Pokémon in the wild that are not found in the game, like Regice in Pokémon Pearl, or Mesprit in Pokémon Soul Silver. A perfectly normal Pokémon in the PC will be identified as 'Bad Egg'. The elite four in Ruby ,Emerald, Sapphire, Leaf Green, and Fire Red all have at least one bad egg in their party, so while utilizing a cheat to capture their Pokémon, make sure to save first. The Bad Egg will also dry out your battery so watch out! Also after this occurs clock based events will not work

In generation V, most glitches have been fixed for bad eggs. In other words, if you recieve one, your game will not freeze or corrupt, but that also means you can't get rid of them with the current resources, unless you hack into the game using a device of some sort. In further detail, the egg cannot be used in a battle or be released. It acts like a normal egg that never hatches. If you manage to get one that does hatch, it will act like an ordinary one and freeze the game.

Overall its better off you do not get the egg and do not hatch it.
Source: http://pokemon.wikia.com/wiki/Bad_EGG

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I was watching a youtube video and it hatched into a treeko that looked like a hybrid from a bulbapedia picture. then the kid went to his PC box 12 after saving when it hatched and 2 eggs were inside box 12 where the egg will always be after hatching.
Nice. Thanks.
Wow! I never knew all of that about bad eggs. I thought they were just eggs of the deleted pokemon, missingNO.
2 votes

If it is forced to hatch through use of a cheat code, a ? will come out and the game will immediately freeze. In Generation IV, sometimes Bad Eggs can hatch into the previous Pokémon, or -----.

sooo yeah. it hatches into a ? or a ----- or the previous Pokemon in your party

1 vote

It depends, but it could make your game un-playable or corrupt your file. Or it might not do anything. It might never hatch either.

Source: http://bulbapedia.bulbagarden.net/wiki/Bad_egg_(Pokémon)