As short as the game demo is, I can absolutely see the potential here for this to be fleshed out further! I can definitely imagine this being a fast gameplay experience, either with long levels of wild timing of various shots (maybe even using different guns, with different fire rates and limited ammo counts), or lots of short-burst levels for the player to rapid-fire play through. You definitely have a neat concept here, so keep going with it if you feel up to it! Nice job so far! :D

I really enjoy the mechanics of targets determining movement. It has the potential for some wild chains and fast gameplay in future levels.  

I found a bug when I over-leapt the goal and didn't trigger a game restart when falling. 

Maybe the game should have ramped up difficulty slowly with a larger map so you have to navigate with left/right forward/backward objects before having to time a jump.
The first thing you need to do is jump and I found it kind of hard at first (maybe I'm just bad)
And I was surprised there was nothing more afterwards.
But the concept is nice and it looks good