I didn't understand how to play it, but the description sounds cool

Very interesting! It took me a bit to understand how it works. As soon as I figured it I got hooked! Here is my feedback, I think the game needs some kind of score to give the player a reason to keep going. Also, a tutorial might not be a bad idea. The gameplay is a bit complicated at first. At least it was to me.

I managed to get the blocks falling sideways, is it supposed to do that?