Angry Birds Bad Piggies Level 21-15 Walkthrough
One strategy for Angry Birds Bad Piggies level 21-15 is to fire the first yellow bird at a very high arch so he comes down in the leftmost gap. Speed burst and split the long middle wood beam below the helmet pig. With a little luck this should take down the tower and pop most of the pigs. Fling the white bird over towards the stone tower, detonating at the last second to blow it to smithereens. If necessary, use the last two birds to pop the remaining pigs while destroying as much debris as possible. My score with this strategy was 110,460.
