Roaming Pokémon IV glitch: Difference between revisions

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Line 2: {{Bulbapedia2\|Roaming Pokémon glitch}} The '''Roaming Pokémon IV glitch''' occurs in {{RS}} and {{FRLG}}. The '''Roaming Pokémon indvidual values oversight''', sometimes referred to as simply the '''Roaming Pokémon glitch''' is an error regarding the possible range of [[bp:individual values\|individual value]] totals of [[bp:Roaming Pokémon\|Roaming Pokémon]] within the first four handheld Pokémon games; namely Pokémon Ruby, Pokémon Sapphire, Pokémon FireRed and Pokémon LeafGreen. It does not exist in the later games, such as Pokémon Emerald. The [[glitch]] although perhaps less noticeable to less experienced players, restricts Roaming Pokémon such as Latias, Latios or the [[bp:Legendary Beasts\|Legendary Beasts]] from having an IV total greater than 38. Specifically, the affected Pokémon would always have 0 IVs in the Special Attack, Special Defence, Defence and Speed stats and a maximum 7 IVs in the Attack stat, the individual value for HP however, remains unchanged. It causes roaming Pokémon (Latias, Latios, Raikou, Entei and Suicune) to always have 0 IVs in Defense, Special Attack, Special Defense, and Speed, and a maximum Attack IV of 7. The HP IV is unaffected by the glitch. ~~==Technical explanation==~~ Information for the individual values of a Pokémon is read in a [[dword]] (a total of 32 bits in [[binary]]) or {{Explain\|four bytes\|As most modern hardware use eight bits for every byte}}. Hence the permutations of the individual values a Pokémon has is denoted by 11111111111111111111111111111111 or a total of 4294967296 possibilities, which includes the unlikely circumstances of a Pokémon having 0 IVs in every stat. When the player encounters a Roaming Pokémon however, an oversight by Nintendo was that only the first byte is defined (the first eight bits from the right). By default, if the other bytes for the individual values are not defined every other bit is taken as 0. Therefore, the permutations are reduced to just 11111111 or 256. HP was the first stat in the data structure so it remains unchanged, but the other stats except Attack remain undefined and the Attack IV can only be an integer between 0 and 7. ==See also== #[[Roaming Pokémon Roar glitch]] [[Category:Generation III glitches]] ~~#[[Bad Egg]]~~