Once you reach level 4 or 5 the buildings stop getting bigger. It’s about 5 or 6 floors with a roof from then on. I’m on level 15 and they’re still the same height. 169ft seems to be the peak. And it’s almost impossible to drop it. You don’t need to time each hit. If you keep clicking it will hit it each time. Gets very boring and repetitive after round 4.