This game reminds me of a 3D Super Hexagon; a game I played a ton of. This game is fantastic, and I can't wait to play it more. (This opinion was formed in about 1 minute.)
3rd game in years. Wave 150, 1447 kills, and $1470 left. P.S. Why am I killing a printer with a magic shockwave-releasing rainbow ball that explodes on contact and kills all in its range. MWAHAHAHA!