Nintendo Game & Watch: Super Mario Bros. I used this for about a week and then stored it in a dark room. Operation confirmed. The front of the main unit is in beautiful condition, but there are small scratches on the back where the plastic was in contact for a long time, as if it had melted a little (see photo 4). There are also some scratches on the outer box. It will be shipped via post. Please understand this before purchasing. Instant purchase is OK.