Great Game, but for a couple of things
-A way to turn off the music during the game. It got annoying after a while.
Or better yet, give us the choice of 4 different songs. Or as time goes on the song changes. (I realize this may have been what you were planning before you got lazy)
But really, hearing the same thing over and over drives you bonkers.
-Time stopping into negative is a cool idea. However, I had trouble seeing my ship at first. Maybe make things a little easier to see in Time stop? Or instead of negative, make it have some other eye friendlier effect?
-The target reticle gets lost very easily, easily enough it goes out of the game window. Either make it more noticeable, or somehow keep it stuck within the window.
-If we click out of the game window, whether purposely or not, PLEASE automatically pause the game for us.
-As cheap as the spiral weapon seemed, you ended up needing it because of the way things started spawning everywhere, including the powerups, making it too damn hectic to even try moving around.
-Speaking of which, maybe once your weapons are maxed out, stop the weapon powerups from appearing? Once your weapon speed is maxed out, stop the speed powerups from appearing? Just a way to reduce clutter.
-Acheivements, unlockables, some totally bizarre secrets that some people might never see. Too bad for them.
-Incorporate as much as you can, and be sure to beta test it! I know all these changes could cause some unforeseen problems, but thank you.
Again, superb game. But these were my gripes.