Yesterday I snagged a GameBoy Pocket for about $5 at a Goodwill Store. I have no games to test it (just GBA stuff) but I did remember that without a cart it shows the Game Boy name. So I pop in some batteries, turn it on and I get a big black rectangle moving down the screen with the "circle R" next to it.
Does this mean the screen is bad or is there something loose? At least they said I could bring it back.