This is the adventure of a... you know, I'm not at all sure what the heroine is supposed to be. She has pointy ears, though. Anyway, your heroine is kicked down a hole into the underworld, and has to make her way home. The underworldis filled with some very angry bluebirds and some other monsters that would be at home in Metroid.
Arrow keys move, Space jumps, Escape brings up the status menu. There's essentially no mercy invincibility, so enemies kill you very rapidly. Fortunately, you have unlimited continues and green pads on the floor act as save points.