Sell 5 towers in a single mission.

Call a wave within 3 seconds of the icon showing up.

Recruit max elves at The Silveroak Outpost.

Have at least 3 Imperial Guards survive in the Citadel.

Free the sasquatch on the Icewind Pass.

Catch a fish.

Polymorph 50 enemies into sheep.

Have a single barbarian kill 10 enemies.

Hold 500 or more enemies with Wrath of the Forest.

Have your Paladins heal a total of 7.000 life.

Have your Paladins perform 100 Holy Strikes.

Kill 300 enemies with electricity.

Drop 1.000 or more bomblets with the cluster bomb.

Summon 5 rock elementals in any one stage.

Build 4 Tesla towers in any stage.

Kill 50 enemies by poison damage.

Shoot 100 missiles.

Snipe 50 enemies.

Throw 500 or more axes.

Kill 10 or more sheep with your hands.

Disintegrate 50 or more enemies.

Teleport 250 or more enemies.

Defeat Vez'nan.

Complete the campaign.