Cool, polished, and enhanced classic
I'm amazed at how well this game performs despite all of the effects involved. That's probably the best thing about this game: performance.
Rating the graphics is a bit tricky since the game's graphics are centered around particles. The particle patterns and colors were beautiful and the effects were tuned just right. The smoothness in the sprites combined with their retro style worked out pretty well and adjusted more with the particles' fading effects.
Gameplay was solid. Simple and easy to pick up. The controls weren't too loose or sticky. The different features suck as frenzies and color-based attack boosters were a cool twist.
The menus all looked cool. This game is just really well done and I can tell effort was put into it. Everything is adjusted just right and the result is a cool, polished, and enhanced version of the classic Space Invaders.