ACHIEVEMENT - HOW TO UNLOCK All birds with one stone - Destroy all towers (at least 2) on a level with a single capture. Collector - Capture 100 powerups. Dragon Crisis - Let Xitrof lay 15 eggs on the final level, then win the level. Dragon Master - Capture 100 dragons. Face off - Capture xitrof. Flawless Victory - Complete every level to perfect on any difficulty. Mission Impossible - Finish the game on Impossible difficulty. One more - Capture a catapult trigger when there is no more turret left to shoot out. Powered Up - Capture a powerup while you are under the effect of another powerup. The Conqueror - Conquer at least 40% of the playfield with a single capture. Triple X - Capture at least 3 triggers with one capture. Zoo Master - Capture one of each enemies.