@meatpudding thanks for the feedback! The damage is indicated by a screenshake, but I guess it was too subtle. We should've probably made it more over the top with a loud "oof" and a white/red flash on the character.
There were some issues with autopushing that we couldn't fix with the base content we wanted to provide, so we stayed with the button activated one.
We made powerups (from the question mark boxes) so that you'd be able to trim down columns before you can get stuck like this, but maybe we still need more balance. The gameplay might not benefit from a movement ability like a wall jump, but we'll try it out if we keep on updating the game after the jam!
@deathray Hi, there's a "How to play" section in the main menu, give the game a try again after giving it a read and let us know what you think :)
You can only push blocks that don't have any blocks behind them or on top of them, it's a bit more skill reliant, but you can push blocks that are on the top of the towers while jumping.