|LEGO → System → Space → Mars Mission|
- "This is the Big Bad of the Alien fleet. We still don't know what it came from or what it wants, except to take our crystals and drive us off the planet. Extremely powerful and extremely dangerous!"
- ―An unknown astronaut
The ETX is the Aliens' main and most powerful ship. The mothership itself can separate and divide itself into four different crafts. It would fire a missile when you pulled the trigger located on the handle underneath the ship. The set also includes an Astronaut defense station with a drill and a pump system that can fire 4 soft foam 'missiles'. The set includes 2 Astronauts and 5 Aliens.
|This is a description taken from The LEGO Book. Do not modify it.|
" The aliens' ultimate attack vehicle included five glowing alien warriors and could split apart into a command saucer, two scout ships, and a strike fighter. To combat it, the set came with a defence station with two astronauts and pump-blasted foam missiles."
- The front of the Mothership was the Alien Assault Ship in LEGO Battles, while the main body was the Alien Transport Ship (minus the appendages at the sides.)
- In CrystAlien Conflict, the front was the Dragon Cruiser, and the side appendages were Vipers.
- In the LEGO Club Magazine, the mothership is described as having "Electrostatic Atmosphere Collector Vanes", "Plasmoid Beam Cannons" and "Arekkan Ray Cutters". It's armor is said to be made of an unknown composite.
|Space sets released in 2007|
|7690 MB-01 Eagle Command Base | 7691 ETX Alien Mothership Assault | 7692 MX-71 Recon Dropship | 7693 ETX Alien Strike | 7694 MT-31 Trike | 7695 MX-11 Astro Fighter | 7697 MT-51 Claw-Tank Ambush | 7699 MT-101 Armored Drilling Unit|
|[ full list ]|