LEGO City Volcano Exploration Base 60124 offers a lot of playability. The Volcano Exploration Base, has a volcano with eruption function, a mobile operations centre with detachable truck cab and side opening lab, a large excavator with extendable hammer arm that moves up and down, a drone with spinning rotors, a wheeled dumper, ‘lava' boulders with crystal elements inside and various tools. Mobile operations centre has a detachable truck cab with space in the back to carry a boulder, rolling wheels and a side that opens to reveal the operations centre. Excavator has an extendable hammer arm. Wheeled dumper has rolling wheels and a handle. Drone has spinning rotors. Use the lever to trigger the volcano eruption. Set the boulders in the boulder rack and use the excavator to crack them open and retrieve the crystals.