Great!
One of my favorites! Great graphics and sound, especially loved how the background changed depending on what clor object passed over it; very cool! Along with the great variety of enemies and weapon upgrades makes this a great addition to Newgrounds! The only thing I would say you could change to improve it is make the projectiles from the weapon look like lasers bolts intead of triangles, I think it would just fit better. All together a great game, hope to see more in the future!!