Game 3 is my fave... Awesome... brings back memories of my Commodore 64 days where my favorite game was Galaga, crude pixels, smooth movement, great action.

One small refinement suggestion: perhaps a few "tick marks" on the horizontal axis so people can time it right (if not for all, at least for initial levels, would lure players in a little more), eg see http://imgur.com/kDEgbTo

Edit: here's a longplay video of that Galaga game. http://www.youtube.com/watch?v=aSqk8t0Pxww