Danger Zone D-18 is the seventeenth level in Danger Zone. The objective of level D-18 is to use the birds to eliminate all the pigs. Get at least 135,000 points for 3 stars.
This level is not hard, but a bit hard for three stars.
Send Black Bird along the southern and detonate when he reaches the structure. Send Terence along like the first shot. Only further from the planet. The goal is to pass through the bubbled pig and into the top structure. With a little luck, either Terence, the asteroid, or debris will reach the TNT on another side of the planet and demolish the remaining pigs.