Controls for rotate and hard drop are flipped. And the game seems to just break in any case that isn't a fresh level from a fresh boot. So many different bugs in just a few minutes of play that I gave up.
Playing the game makes me feel like a brainlet. I think you might have to streamline things more if you want the average player to enjoy this.
The core idea is intriguing though. I hope you will find a way to make it truly click. One thought did jump at me, maybe try giving a delay to completed rows disappearing? Like say, 3-5 player moves or something like that. So you can build a row to finish and move out of it instead of dying and it would give you an opportunity to grab some item that would go with the row.