Use the Thermal, Burnout, or Nitrous Rocket Boost for a total of 10 minutes

Protect the survivors

Complete "Homebase Storm Shield Defense 6"

Complete "Weapon/Trap Evolution"

Destroy 100 Garden Gnomes in successful missions

Unlock access to the Constructor Hero

Unlock access to the Outlander Hero

Complete "Hero Training - Stage 2"

Unlock access to the Ninja Hero

Unlock and Slot your first Storm Shield Defender

Complete "Six Minutes"

Complete "Epic Troll Stash"