If you want to do a real game, you must work harder. Just two scenes it's very poor! The collisions are too high. If you want evolve your game, you can by example make enemies, others traps and many interesting situations. With the jetpack, you can imagine obstacles on the top and the bottom. Therefore, your player can shoot on enemies. You can take inspirations on the games serie "Megaman", but with a jetpack^^. After, it's you whose decide if you want do a real game or just a very short try. Good luck!