From Bulbapedia, the community-driven Pokémon encyclopedia.
This is a list of Nintendo event Pokémon given away at a Toys "R" Us promotion called Pokémon Trade and Battle Day. These Pokémon were version-exclusive or they are hard to obtain in Pokémon FireRed and LeafGreen Versions. These were given away on September 25, 2004 in the United States and can only be from Pokémon FireRed and LeafGreen. They all have the OT JEREMY.
List of event Pokémon
This Pokémon was distributed as a Machoke, but evolved into Machamp when it was received.
This Pokémon was distributed as a Haunter, but evolved into Gengar when it was received.