They're Coming from the Side!?
Dammit gravity, you don't work that way!
Really, this was a great flash, but the beginning just seemed too similar to cobra0528's Tetris'd. Of course, when the blocks started coming from a different direction and you got some (real?fake?) 3D in there, it got much more interesting.
I'd say, if there is a next time, try making more of it with 3D (you don't need to include the bullet-time), and have the blocks come from above, below, left, right, in front and behind.