LEGO Mars Mission EXT Alien Mothership Assault Using its advanced weapons and three detachable spaceships, the Alien Mothership will stop The astronauts must defend themselves with their launching air-powered rockets Giant Alien Mothership has human outpost with rocket launcher and moveable drilling function Includes mini-defense station, air pump system, rotating foam missile launcher with four foam missiles Contains 434 Pieces Also includes 2 astronaut minifigures and 5 alien minifigures that glow-in-the dark