Nice game! Good presentation and idea.
Took me a loong time to understand what was meant by balancing the tree (I thought it meant that two halves of the tree have to be balanced). I didn’t really understand the explanation:
The objective is to collect the things on the game board in such a way, the you always have at least the same amount of things for the lower level as for higher levels – otherwise you slip down back to a lower level, and lose the things collected above that level.