This is how much your Pokémon toys, games and gadgets are now worth of your swag will have gained some value throughout the years. Prices for all GameBoy games, accessories and consoles. Prices are updated methodology. Download a GameBoy Price Guide with prices, genre, and more game data Pokemon Yellow, $, $, $, + Collection · Pokemon. Well I am on this reliable website where you trade and buy games, and someone just offered me $35 for Pokemon Crystal, which seems like a.