So I've watched softbody tetris video on YouTube by C4D4U.
JelloTetrix is a game where you must put blocks densely in a row for them to disappear. More rows at once is a way to get higher score, but it will be definitely more tricky due to jello effect.
Controls:
Up arrow - rotate
Left/right/bottom arrows - accelerate
R - restart
My current personal best score is 15 852 and you'll get a short easter egg once you manage to beat it. I hope it'll make you smile :]
Don't forget to mess with game settings ~
If game lags - maybe try different web browser. Game simulates a lot of particles so it won't be too easy to handle for many devices.