Unlock all towers.
Make an enemy's path longer than 250 meters by blocking with towers.
Get more than 300,000 points when clearing a stage.
Clear all stages with 100% Core HP. (HARDCORE)
Unlock all stages.
Check information on all enemies.
Sell more than 10 towers in one stage.
Save more than 5000 resources when clearing a stage.
Destroy more than 30 enemy units in 5 seconds.
Get 5 towers destroyed by enemies in a stage.
Clear a stage with less than 5% Core HP.
Clear a stage by building all types and all levels of towers.
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