Very nice and polished platformer! I enjoyed the gameplay, the presentation, the amount of content and everything around. However, I think that if you removed the clone following your footsteps, the game would still play mostly the same. I mean, you usually don't need to press the switches (as you can essentially fly with the gun), and there are other mechanics to keep you moving (some enemies, trying to speedrun, etc.).
I think it is just one tiny step from being truly awesome. It definitely has a potential of becoming a fully fletched game capable of being sold on Steam or something - with more invested time to polish it.