Colosseum (TCG GB1)
Colosseum is one of the five sets found in Pokémon Trading Card Game for the Game Boy Color.
On the cover of the booster pack features a Pikachu.
Club Masters and their Club Members usually give out the booster packs when you defeated any of them. They are:
Some of Dr. Mason's mail have some of the booster packs as an attachment.
It includes cards from Base Set, Jungle set, Fossil set and also has a addition of Tangela, which is exclusive to the game.