Interesting Idea
The idea is new and original, so I gave you points for style. Yet honestly the game-play isn't amazingly fun.
Having three games in one using a similar concept was a cool idea.
The graphics were sort of bland. Mr. Bouncy was okay, but the tweened rectangles take away from the game. Try upping the frame-rate so stuff doesn't jerk around so much, and use thin lines instead of rectangles.
The sound was okay but I've head the tetris theme song many times before. Also, I would recommend publishing the SWF with the sound maxed out. It really doesn't make your file too much bigger.