I've played and rated your game, and I hope you don't mind me giving you come constructive criticism and feedback about it.
I love this game a ton, like the other comments have stated, this game is super polished for being a 72 hour game jam, I'd have expected you guys to have stayed up the entire 72 hours with how amazingly polished this game is.
I love how the game gives some awesome impact when you drop blocks, it's really great!
I'm rubbish at Tetris myself, BUT it's such a challenging and fun game! I could totally see this being a release on the Switch or something.
I have nothing negative to say about this!
AMAZING JOB ALL OF YOU! You've all done awesome :D Give yourselves a round of applause
(-Amy)