Fateful encounter

During the history of Pokémon games, several event Pokémon given away have been set to show them as received in a fateful encounter, as opposed to a normal capture. While this was a separate location listed in Generation III, in Generation IV, it became merely another statistic of a Pokémon, allowing different areas to be listed while maintaining the specialness of the Pokémon.

Due to this flag, special events can be accessed in Pokémon HeartGold, SoulSilver, and Platinum when specific Pokémon that are encountered by way of fateful encounters are in the party.

List of in-game events activated by fateful encounter Pokémon

• Shaymin
  • Pokémon Platinum - in Floaroma Town, players can receive a Gracidea from a woman.
  • Pokémon HeartGold and SoulSilver - in the Goldenrod City Flower Shop, players can again receive a Gracidea Flower from a woman.

• Regigigas
  • Pokémon Platinum - Activates the appearance of Rock Peak, Iceberg, and Iron Ruins where the other Regis can be captured.

• Pikachu-colored Pichu
  • Pokémon HeartGold and SoulSilver - Activates an event involving an encounter with the Spiky-eared Pichu.

• Arceus
  • Pokémon Platinum - in Oreburgh Mine, a Hiker will give away a Flame Plate and a book in the Canalave Library will become available with the inscriptions on all plates.
  • Pokémon HeartGold and SoulSilver - When selected as partner Pokémon, the player will be able to teleport from the Ruins of Alph to the Shinto Ruins far to the north. This allows the player to obtain either a level 1 Dialga, Palkia or Giratina. It also allows the player to obtain the Griseous Orb if Giratina is chosen.

• Jirachi
  • Pokémon HeartGold and SoulSilver - activates Edge of the Night's Sky PokéWalker area.

• Celebi
  • Pokémon HeartGold and SoulSilver - activates an event with an encounter and battle with Giovanni after being taken back in time with Celebi. This event Pokémon hasn't been released yet.

Trivia

• Pokémon Diamond and Pearl were the first games to feature Fateful encounter event Pokémon.
• Pokémon Platinum was the first game to feature in-game event Pokémon.
  • The first in-game event Pokémon were the Legendary Golems, activated with the level 100 Regigigas in Pokémon Platinum.