The Big Setup 10-15 is the last level of the second theme in The Big Setup. This level is easy to complete but it has a very high challenging to get 3 stars.
If you want to get 3 stars, it relies entirely on the first shot. Launch Big Brother into the arm of the crane, causing the TNT to fall. The lower the TNT falls before detonating, the more likely to trigger a chain reaction. If all of the pigs are not popped yet, clear the remaning structures the other Big Brothers.