Pokémon Ruby and Sapphire/Nintendo Events

Nintendo events are events where Nintendo gives away certain Pokémon and tickets to get to rare or legendary Pokémon not usually found in-game.

Here is a list of the different tickets and items available from Nintendo Events:

Eon Ticket
 * To access either Latios or Latias and obtain the Mind Dew hold item.

Mystic Ticket
 * To access Ho-oh and Lugia

Aurora Ticket
 * To access Deoxys

Old Sea Chart
 * To access Mew

Here is a list of Pokémon available from Pokémon events:

Toys'R'us Give-away
 * Mew

Journey Across America
 * Celebi
 * Bulbasaur
 * Charizard
 * Blastoise
 * Pikachu
 * Alakazam
 * Articuno
 * Zapdos
 * Moltres
 * Dragonite
 * Typhlosion
 * Espeon
 * Umbreon
 * Raikou
 * Entei
 * Suicune
 * Tyranitar
 * Blaziken
 * Absol
 * Latias
 * Latios