Beat a challenge mode level.
Reach the end of the campaign.
Collect 333 crystals.
Use a ghost repair seeker to repair a square.
Collect IX63 in the campaign.
Use a shield to kill an enemy unit.
Go where nobody has dared to go before and live to tell the tale.
Discover a mysterious resource in the campaign.
Successfully get a unit killed. Congratulations.
Barely evade an enemy unit and survive the encounter.
Collect BK37 in the campaign.
Kill 6 drones in one level. You fiend.
Collect AX15 in the campaign.
