Pretty cool game, the shooting felt really smooth :) I feel like there was a bug on lvl 1 though, when you had to jump past 2 lasers to get to the flag on the left, sometimes when I was standing on the black platform it would let me jump, whereas other times it wouldn't jump at all so I would just walk straight into the laser?
It would also be nice if you could move at the same speed whilst shooting, and if you added some BGM.
Other than some bits to polish though I had fun playing! Nice job :D