Even I'm not fast enough for level 15.... or am I?
Congratulations - you managed to make something even more monotonous than the original tetris. The big, huge flaw in this game is that there is absolutely no advantage whatsoever to advancing to the next level. You don't get any extra points out of the deal, you don't rack up points faster at the higher levels, and there's no opportunity to WIN the game, it just increases the speed and adds new colors. If you want to get the highest score possible, you should deliberately NOT match the form of the next figure in the queue so that you stay on level 1. I simply advanced through the levels because I figured "what the hell, it's not like I'm going to play this thing a second time". And they were all pretty indistinguishable after a while, until number 15, when the speed suddenly became, with nothing in between, the full downward speed you get when you hold the down button (holding the down button made no difference), and I could probably have won it and gone to 16, but I said "screw it" and ended that sucker where it was. Of course, for all I know, you win level 15 and you win the game, but I doubt it. Oh well. I'm certainly not going to go through all that again to test it.