Oh yeah, we definitely could have explained the butterfly and orb mechanics better in the game. The butterflies (and mushrooms) actually have a 10% chance to spawn when a piece of greenery is spawned. The orb, if I remember right , has 10 bounces before it disappears. We had plans to make it more obvious when the orb is about to disappear but weren't able to implement them due to time constraints.
Thanks for playing, I loved your game too!