Tiger Marble Madness (1989, LCD, 2 AA Batteries, Model# 7-789)
Based on Atari's Marble Madness arcade game. You control the movement of a marble as it rolls throughs various mazes with constantly changing obstacles. A little weired to control, but a fairly decent handheld version of the great arcade game.
Manual in PDF format available.
My version is boxed, I've also seen this blister packed like
most of Tiger's other games.
Do I have this? Yes, boxed (but opened).