Place all towers available in the episode

Completed a level without improving towers.

Placed all types of towers accessible in the episode on a single tile.

Used all the different types of bonuses on a level.

Sold 10 towers on a single level.

Installed all types of towers accessible on a level.

Unlocked a tile for elixir on any level.

Used bonuses 10 times on a single level.

Completed a level with 10 heart remaining.

Collected 10,000 coins in a single level.

Didn't let a single enemy reach the outpost throughout a level.

Destroyed 20,000 enemies throughout the entire game.