Capture at least 3 triggers with one capture.
Capture a powerup while you are under the effect of an other powerup.
Conquer at least 40% of the playfield with a single capture.
Capture a catapult trigger when there is no more turret left to shoot out.
Capture one of each enemies.
All birds with one stone
Destroy all towers (at least 2) on a level with a single capture.
Capture 100 powerups.
Capture 100 dragons.
Let Xitrof lay 15 eggs on the final level, then win the level.
Complete every level to perfect on any difficulty.
Finish the game on Impossible difficulty.