Tiger Star Castle (1982, LCD, 3 Watch Batteries, Model# ?)
Based on Cinematronic's Star Castle arcade game, small handheld version. (Thanks to Omega Man and Patrick L. G. for the game, and Taki for the picture of the box!)
Games in this series (5 found so far): Jawbreaker, King Kong, Monster Maze, Space Invaders, Star Castle.
Do I have this? Yes, loose (this is mine pictured).