Purchased 1000 units
Defeated 200 flying enemies
Completed the game
Defeat invader (Beat level 6)
Purchased 500 units
Pressed the buttons for 7777 times
Defeated 500 enemies
Defeat samurai (Beat level 5)
Defeat vampires (Beat level 4)
Purchased 250 units
Pressed the buttons for 4000 times
Collected 500 coins
Defeat demons (Beat level 3)
Collected 250 coins
Purchased a coin grabber
Defeated goblins
Pressed the buttons for 1000 times
Purchased all unit creation speed-up upgrades
Built a mine
Built a windmill
Purchased all tower upgrades