Very clever and original theme ! It will be quite easy to create level difficulty  with somes constraintes on numbers of spawn max or other forms etc..)

I like the graphics. It's fun, you can fill the entire screen with boxes :)

It’s fun game. However, I found it pretty easy. It’s hard to make the boxes tumble.

Very fun game actually! I've found a way to stack really high and it was quite fun to do so. Making this into a puzzle or sth like that can be a good idea. Though, the boxes were a bit hard to control and the character sometimes can't jump. I've also had a bug where the first time I play (easy mode), the character disappears. But I can't recreate it. But it didn't affect my experience at all.

Really nice game! This makes for a nice mechanic, could be expanded into a really good puzzle platformer. A bit sad though that it was made in more than double the time of the game jam