Has been tested and save battery works. Pokemon Blue, Red and Yellow are region free and will play on all Game Boy/Game Boy Color/Game Boy Advance consoles.Pokemon Gold and Silver are region free and will play on all Game Boy Color/Game Boy Advance consoles (not original Game Boy/ consoles). The item "Game boy POKEMON x5 Carts BLUE +GOLD +RED +SILVER +YELLOW PAL Color Pokémon" is in sale since Thursday, August 5, 2021. This item is in the category "Video Games & Consoles\Video Games". The seller is "thegameshak" and is located in Newcastle Upon Tyne. This item can be shipped to Australia, all countries in Europe, Brazil, New Zealand.