Thank you for playing and thank you for the feedback ! I'm glad you at least understood that the droppable things existed haha It definitely need a tutorial. One of the last things I did in the jam was to add an animation of the button and the image spawning to bring more attention to it, but it was definitely not enough as clsoe to everybody didnt know it was even a thing. As for the trees, maybe there's just too many of them, we added a kind of "wall of leaves" that moves when there's a new tree so you see the boundary move, but that's good for the 3rd tree, but for the 4th and 5th you generally miss it.
Thank you for the feedback !