This is a very clever idea and it looks great!
It's a bit too brutally difficult for me... I can't really get anything done with it...
By the time I can tell what block it is, it's already decided where it's falling, and I couldn't possibly traverse the map fast enough to get it in a place that works for me...
But I can't help but like this game. I love smart twists on classic basic staples like Tetris, and new combinations of genres. It's always so great to see. I don't think this came out as particularly manageable or fun in this brief iteration, but it's so smart, and I love seeing it. The presentation is great. I feel like this could be iterated on into something rather fun, but as a TriJam project in its current state, it's still really excellent.