Danger Zone D-19 is the nineteenth level in Danger Zone. The objective of level D-19 is to use the birds to eliminate all the pigs. Get at least 110,000 points for 3 stars.
The fortress looks complex, but three stars in this level is easy.
Send the Red Bird below the bottom planet, propelling him into the bottom of the main structure. Do the same thing with the first Lazer Bird, but redirect into the TNT after he loops around the planet. The the other Lazer Bird, either choose the same shot or loop around the top planet, then redirect into the top TNT.
Send the Red Bird along northern of the first planet. Hit the structure, cause some blocks will be pulled to the twin planet. Send the Lazer Bird above anything and redirect him to the northern TNT. Cause chain reaction and clear the entire level.