grawr
I really enjoyed this game, i spent alot of time playing, it got incredibly hard all of a sudden though, and i have agree with everyone else on the problems with the randomization of pieces generated, although i do think if you had set of certain blocks you could use i think it would take away from the game a bit, only because then you'd be expected to use each piece a certain way instead of coming up with your own method. Overall i guess other than the learning curve of the game being a problem the only thing i would change(which you might already have in the game but i couldn't find it) is the ability to rotate your blocks in both directions, plus i found the physics of the blocks weren't the same as the actual tetris game, like how you can keep spinning a block so it doesn't stick