Our non-character swap strategy for Angry Birds Star Wars II Rewards Chapter level PR-20 is to fling the first Royal Guard into the top portion of the first bubble. As he enters, fire his anchor backwards up into the chain so as to pull it down to, detonating the TNT and releasing the boulder being held in place by the gear. Now fling one more Royal Guard down towards the bottom TNT, detonating it with the anchor to destroy the left structure. The score in the video below is 121,830.
Reward Chapter levels are unlocked by obtaining a predetermined amount of damage points with a specific character. For a complete layout of these thresholds, see our achievements list. We also have a handy Complete Characters Guide that breaks down all the characters and their abilities. If you have a different strategy leave a comment below; however, don't just post your score via the comments, as that's what the leaderboards are for.