|Shadow Centurion Base|
|Planet's Dark Side, LEGO Center|
|Laser Cannon, Mercenary Bully, Mercenary Bouncer, Mercenary Muscle, Mercenary Schemer, Dr. Steel, Robo Artillery, Shadrack Circuit-Burn, Alien Scoundrel, Photon Blaster, Mantis Nymph, Mantis Lord, Alien Rascal, Minotaur Brute, Abducted Medic, Raffle, Mind Slaver, Crooked Tooth Ruffian, Alien Queen|
|Shadrack Circuit-Burn, Alien Queen, Sergeant Thrace-Railhead Commander, Space Soldier, Space Miner, Video Game Guy|
"A dark presence looms over the Shadow Centurion Base. Something Alien awaits beyond"
- Defeat the Alien Queen to conquer the dungeon and get free and member Loot Chests.
- The first time you do, you complete Space World and unlock Mythology World.
- Enemies and Smashies do not regenerate.
- When you conquer the dungeon, it resets; you lose your teleport spots.
The following minifigure parts can be found here:
- Mess up the Mercenary control room.
- Defeat Dr. Steel. You cannot advance until you do; you cannot retreat unless your team is broken.
- Defeat Shadrack Circuit-Burn. You cannot advance until you do; you cannot retreat unless your team is broken.
- Defeat the Alien Queen. You cannot retreat unless your team is broken. Two Buildies provide healing hearts.
- Try not to run into Dr. Steel's flying bombs.
- Go up the stairs so Shadrack Circuit-Burn's lasers won't hit you.
- Avoid Raffle, Mind Slaver's Witch Doctor attacks.
You can do these only once.
- Find the Source of the Alien Presence. Reward: 10 crystals.
- Find the Alien Queen. Reward: 10 crystals.
- End the Alien Invasion. Reward: Minifigure Part and 75 crystals.
- Travel to the LEGO Center. Reward: 110 crystals.