Bad Egg: Difference between revisions

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"'''Bad EGGs'''" (Japanese: ダメタマゴ), as they are known in the [[bp:Generation III|Generation III]] Pokémon games and later "'''Bad Egg'''" in the [[bp:Generation IV|Generation IV]] games are error handlers.
"'''Bad EGGs'''" (Japanese: ダメタマゴ), as they are known in the [[bp:Generation III|Generation III]] Pokémon games and later "'''Bad Egg'''" in the [[bp:Generation IV|Generation IV]] games are error handlers.


==In Generation III==
In Generation III, they appear for Pokémon that do not have a correct checksum value (which is stored in its own byte). The checksum is computed by adding all unencrypted values of the 'data' section of the [[bp:Pokémon data structure in Generation III|Pokémon data structure]] one [[word]] (two bytes) at a time. If the actual checksum does not match the checksum value, the Pokémon will be interpreted as a Bad EGG, and if a hex:0000 [[??????????]] was interpreted as a Bad EGG, it will appear as a Bad EGG with an invisible icon.
In Generation III, they appear for Pokémon that do not have a correct checksum value (which is stored in its own byte). The checksum is computed by adding all unencrypted values of the 'data' section of the [[bp:Pokémon data structure in Generation III|Pokémon data structure]] one [[word]] (two bytes) at a time. If the actual checksum does not match the checksum value, the Pokémon will be interpreted as a Bad EGG, and if a hex:0000 [[??????????]] was interpreted as a Bad EGG, it will appear as a Bad EGG with an invisible icon.


Simply changing the personality value of a Pokémon rather than its [[bp:Pokémon data substructures in Generation III|data]] substructures can also turn Pokémon into Bad EGGs, probably due to the substructure order being changed due to a different modulo value. For this reason, it is possible to obtain Bad EGGs without cheating in Pokémon Emerald and Pokémon FireRed and LeafGreen using the [[Generation III bit set glitch]].
Simply changing the personality value of a Pokémon rather than its [[bp:Pokémon data substructures in Generation III|data]] substructures can also turn Pokémon into Bad EGGs, probably due to the substructure order being changed due to a different modulo value. For this reason, it is possible to obtain Bad EGGs without cheating in Pokémon Emerald and Pokémon FireRed and LeafGreen using the [[Pomeg data corruption glitch]].


Like ordinary Eggs, Bad EGGs in Generation III under normal circumstances can never be released, however, they can be released with the [[inverse cloning glitch]]. When the player attempts to view a Bad EGG's summary screen the game will not give the details of the Pokémon inside but rather, the game will bring up an 'Egg' summary screen, showing its 'state' (an indicator of how long it'll take to hatch the Egg) and 'trainer memo' (origin).
Like ordinary Eggs, Bad EGGs in Generation III under normal circumstances can never be released, however, they can be released with the [[inverse cloning glitch]]. When the player attempts to view a Bad EGG's summary screen the game will not give the details of the Pokémon inside but rather, the game will bring up an 'Egg' summary screen, showing its 'state' (an indicator of how long it'll take to hatch the Egg) and 'trainer memo' (origin).
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A [[glitch Pokémon]] in {{DP}} with an [[identifier|index number]] of 495 (hex:1EF), known as "Bad Egg".
A [[glitch Pokémon]] in {{DP}} with an [[identifier|index number]] of 495 (hex:1EF), known as "Bad Egg".

"Bad Egg" is also mentioned in the [[Arena Trap/Magnet Pull/Shadow Tag flee glitch]] in {{Platinum}} if the player attempts to flee when the right side wild Pokémon has fainted.

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