This is a completed toy designed for children.
From the Lego website:
Stage a daring rescue mission and release Ava from Jestro’s Headquarters, featuring a giant face with hidden weapons, detachable Hatattacka with flick missiles, Mobile Stone Keep trailer with adjustable crane and cage with movable bars, and an ejecting Stone boat function. This feature-packed LEGO® NEXO KNIGHTS™ set also comes with Macy’s Underminer vehicle featuring a spinning drill, plus a Stone Wheeler vehicle with cannons to ramp up the rescue mission action. Includes five scannable shields and six minifigures.