The LEGO City Blue Monster Truck set allows kids to build and customize a blue mini monster truck, complete with a driver minifigure. Once assembled, they can place the minifigure in the cockpit and simulate off-road stunts and tricks. The set includes an interactive building guide through the LEGO Builder app, which provides 3D model viewing, progress tracking, and virtual playset exploration. Designed for ages 5 and up, this set can be combined with other LEGO City sets (sold separately) for expanded play possibilities. LEGO City themes encourage imaginative building and role-play with structures, vehicles, and characters.