It's easy once you know where to throw the bombs. Run to the second bomb first and throw it to the gold "bolt" in the floor. Pick up the bomb from the first position and toss it slightly to the left of the bolt. These two will blow up the first 5 trash piles. Quickly pick up the bomb from the third spot and throw it to the next gold bolt, it's the one towards the center. Grab the 4th bomb and throw it to the gold bolt farthest right. Run back and get another bomb and throw it slightly to the right of the last bomb and it will take out the remainder. Check out videos on youtube for a visual. It took me a couple of days to get that rythym, but now I can do it no problem. Hope this helps.