Play at least one match in every game mode type.

Flatten an unstoppable enemy.

Deliver some medicine to a man in need.

Escape from the graveyard of terror.

Defeat the Mantis.

Destroy the Jamming Devices.

Make it to the surface.

Kill an enemy with each weapon type including special weapons.

31 Parasites killed (lifetime)

3 Tyrants Killed (lifetime)

Purchase 5 weapons.

Follow orders and defeat all liabilities.

Complete the fifth mission of the U.S.S. campaign.