Successfully defend the planet Earth in campaign mode.
Successfully defend the planet Chateau in campaign mode.
Successfully defend the planet Volia in campaign mode.
Successfully defend the planet Faux in campaign mode.
Successfully defend the planet Cairo in campaign mode.
Successfully defend the planet Diva in campaign mode.
Successfully defend the planet Solitude in campaign mode.
Survive wave 20 in endless mode.
Survive wave 30 in endless mode.
Survive wave 40 in endless mode.
Survive wave 50 in endless mode.
Survive wave 60 in endless mode.
Survive wave 70 in endless mode.
Survive wave 80 in endless mode.
Complete the campaign mode.
Successfully defend the planet Mars in campaign mode.