Build 50 towers
Kill 1000 enemies
Sell 500 towers
Complete all levels with 3 stars
Kill 500 enemies with the secret weapon
Sell 50 towers
Launch 100 waves on one map manually
Get 100 000 coins
Complete level when your castle has 1 HP
Build 1000 towers
Kill 50 000 enemies
Fully upgrade 200 towers
Finish the level with 1 hp
