I was tetris at least.
There was nothing extreme about this, it was simply tetris. Now I do enjoy tetris so I found myself playing this until level three but if I ever want to play tetris again there is a wide selection of other tetris games to choose from and unfortunantly yours is near the bottom of the list.
For some reason part of the blocks on left most part of the screen were cut off, it didn't inhibit the game play but it wasn't exactly impressive.
I liked your choice of music but once the song was over at least the first time it just stopped and I had to re start it. Fix that and create additional song choices to improve the audio aspect of your game.
As I mentioned above there are many versions of tetris out there, to make yours stand out you need to either give it a unique theme of alter the game play somehow. Create a tetris version that uses five or six blocks to make a shape for added dificulty and so it's not too difficult increase in size the playing area. Just a thought to make your next version stand out a bit more if you decide to continue making tetris games :)