Start a new game
Win one time
Defeat one enemy in a battle
Defeat five enemies in a battle
Defeat ten enemies in a battle
Stay live for five minutes
Stay live for ten minutes
Stay live for fifty minutes
Defeat fifty enemies
Defeat one hundred enemies
Defeat two hundred enemies
Defeat three hundred enemies
Defeat five hundred enemies
Win five times
Win ten times
Win twenty times
Win thirty times
Disable one tower