Thanks for the feedback! I myself did not immediately beat level 16 yesterday, it just needs the utmost accuracy in placing items. But the worst thing is the last level, where you have to place all the items and hold out for 5 seconds... I made almost a thousand attempts, and once I missed 0.9 seconds T_T
As for scaling items, yes, I'm aware that it doesn't work as well as it looks, sorry ^^'