Help the dino mama to find her eggs, but be careful because many ennemis are trying to catch her. There's a fixed amount of eggs losts at each level, you must fly to get them and take them back to home. Many ennemis will want to capture you at the air. In a limit situation, you can kill them to save your eggs, but you will loose a life for doing it.
Arrow keys to fly. You can use the space bar to kill your ennemis, but you'll loose one life when you do it.