Please read the profile before purchasing. Game Boy GB Cartridge only Super Mario Land Super Mario Land 2 Wario Land 3 Castlevania: The Adventure I have confirmed that they start up and display the opening screens on a Game Boy Color. I do not guarantee that they will start up on all models (including compatible consoles), nor do I guarantee their functionality. Please check the condition in the images. Please note that the battery and save functions are unknown. Please refrain from purchasing if you are overly concerned about the condition. Returns and refunds are not accepted. If you have any concerns, please do not purchase from me and instead buy from another seller or a store.