IIRC, IDK if there WAS an ending to that game.
Or maybe I'm thinking of Fantasy Zone: the maze.
I do believe there IS an ending, but I could never make it.
And the maze fantasy zone kind of sucks. I haven't played it much, but it's kind of like a more aggressive pac man.
The fantasy zone I'm talking about is where you explode into a sprinkle of pollen whenever some kind of enemy looks at you. It's a pretty challenging game.