this has surprising gameplay depth! Nicely done!

I really like this idea ! That is actually fun to play.

However I see a few improvements I'd love to see you make to the game : make the character faster + 2 tiles-high jump, but to counter this removal of constraints, make the Tetris blocks already falling before you press J manually, I think it will make the game faster and more fun.

Also of course, adding music would be really nice, as well as mabye some variations with additional mechanics, mabye falling bombs for example.

Anyway good job, I'll be happy to play it again if you update it !

I really liked the core concept; I had fun building my way up while still needing to keep the board clean. I would love to see you expand the game with additional levels, abilities, and music.

Very unique spin to tetris! Nice job, had to really think about where my little guy had to move.