Ooyama's Pikachu Expansion Sheet Vol. 3 (Green Edition) Series: Pokémon Card Game Set: 1st Generation Expansion Sheet Set Details: Expansion Sheet Vol. 3 (Green Edition) Card Name: Ooyama's Pikachu This is a promotional card featuring a comical and charming illustration by Mr. Ooyama, included in the Pokémon Card Game Expansion Sheet Vol. 3 (Green Edition) released in 1998. It is a rare item that is now difficult to obtain and is said to be traded at high prices among collectors. Although it is an old card, the condition appears to be good to the untrained eye. Please refrain from purchasing if you are overly concerned about the condition, as this is based on a casual assessment.