Thanks for playing! I thought about adding hitboxes to the whole stack, but felt it would be weird as the rocks are stacked on top of each other and wouldn't really collide with any others. Not having hitboxes also felt weird while testing though, especially when you have a big rock on top of a tiny one and you don't collide with things you thought you would. It's one of these situations where both options are right and wrong at the same time. If I ever develop this game further I'll try to come up with a way to make the hitboxes clearer