Sunwing Castle's Adventure (19??, LCD, Watch batteries, Model# ??)
Kind of a flip-type game. It's just a clear plastic screen that flips up when you are playing the game. (For the LCD tech-savvy, it's actually the polarizing filter that's in the flip lid.) There are at least two games with this design: Castle's Adventure and Naughty Squirrel.
Do I have this? Yes, loose.