In Endless Puzzle you have to shoot eggs at the eggs pushed down the screen, making matches of three or more, to break them and make them fall before they reach the rope at the bottom. It has four modes Endless Puzzle, Stomped Puzzle, Fossil Challenge and Time Trial. I played it for the first time back in the 90' and it has the same features now as then. The size of the box though, will not be much larger than the screenshot on this page - that small!
It's a fun little game, and when I say little I mean it! The graphics are long outdated and you'll have to run it in boxed mode just to not be annoyed by it.