Lego Star Wars At-at 75054 Who can stop the Empire's intimidating LEGO Star Wars 75054 walker? Seat the AT-AT Driver and a Snowtrooper in the cockpit of this mighty war machine and move the head to aim the spring-loaded shooters. Pose the legs, trigger the trap door in the body, and open up the side hatches for enhanced playability. The LEGO Star Wars 75054 AT-AT Imperial Walker set includes minifigures of an AT-AT Driver, General Veers, a Snowtrooper, Commander, and 2 Snowtroopers, and 1,137 pieces with which to build. Ages 9 to 14.