Theme 15-2 is the second level of the first episode of Mine and Dine.
Shoot the Black Bird in the middle of the level to activate the TNT. This should destroy half of the level. Shoot the White Bird at the rectangular wooden block the same level hight as the slingshot. Before the White Bird gets hit, use it's egg ability. Shoot the Black Bird at the last remaining pig. You should get 10000 points for the remaining White Bird.