Thank you for viewing. This is Pocket Monsters Crystal Version for Game Boy Color, an RPG released in 1999. The case is included. As I do not have a Game Boy Color, I have not tested the game's functionality or checked the battery. - Model Name: Pocket Monsters Crystal Version - Platform: Game Boy Color - Release Year: 1999 - Game Genre: RPG - Language: Japanese *Please refrain from purchasing if you are seeking a perfect item, to avoid any potential issues. Please understand the above details before making a purchase.