I want to be honest: I am not a fan of Tetris, but I want to make it a fair feedback :D I am a fan of your approach and the minimalistic design around it makes it a feel quite good. Some scene transitions looked a bit weird. The level loaded a bit later than the new shape. But hey, in a 48h Jam game, those things are normal. I would have liked it if in every play through one had only a single shape to point the jams theme out even more. But then it would be less fun though. 

PS: Of course I would like your rating on my game as well ;) https://itch.io/jam/gmtk-2019/rate/460633 

Minimal art, fitting sound effects, a clever idea and a good increase in difficulty - quite enjoyable! :)

My game: https://njamster.itch.io/wonkey (playable in browser, not mobile friendly)

Good twist on the classic Tetris!
My only problem is, that it's getting hard very fast, or maybe it's just I'm not good enough... :D
My record is only 29... :P

Chouette game. PB is over 9000! :)

Got 24 lines! Great idea, fits the theme perfectly - AND I like how you chose to use "only one" color, not sure if that was intentional, but nice!

Perfect. Perfect sound effects, original idea, and really fun. A good way to improve your Tetris skills!

Cute! Smooth execution.

Very clever concept. Simple and addictive.