Physics do not exist in this game. Besides the upgraded graphics, Angry Birds 2 is garbage compared to the original. Also, I hope the developers track metrics for how many users abandon it after running out of lives. I'm not willing to spend money on a time-waster (isn't that why there are SOOO many ads?); I usually exit and forget about it for several days at a time. Nothing is predictable, so strategy and skill no longer matter. The original was fun despite the ads, AB2 is just frustrating.