Birthday

A Birthday of a player can be used to trigger certain in-game events.

In the games

Beginning with the original Nintendo DS's birthday function, all Pokémon games have, so far, had something inclusive for just this function.

In Generation IV

In Diamond, Pearl, and Platinum:

• The NPC player in Sandgem will ask the player if it is his or her birthday.

In Generation V

In Black and White:

• The owner of the Pokémon Musical Theater will give the player the prop Toy Cake on the player's birthday.
• The nurse at the Pokémon Center will wish the player a happy birthday every time you she is spoken to.

In the TGC

Three cards exist, two of them jumbo sized, called _____'s Pikachu, first released in 1999 in Japan. The nature of their attacks are all birthday related, and they can do more damage if the user does claim it is their birthday.

See:

's Pikachu (Wizards Promo 24)

's Pikachu (Pokémon Center promo)

's Pikachu (BW-P Promo)