[bambax]

This is an amazing idea. So original and yet so simple and "obvious" in a way... Excellent execution, too. Bravo.

(I didn't understand one could interact with the fallen pieces until I read the comments here. Maybe some hint somewhere would help...?)

(Also, parameters on the left are distracting; better have good defaults and let the user play. Being able to move the pieces with the gyro when on mobile (as suggested in another comment) would be great.)

[Kiro]

I love it but I don't know how original it is. Tetris with physics like this is very common to implement as a project when learning Box2D.

[code_runner]

I think goofing around the discovering stuff adds to the fun!