As it moves, the legs undulate in a wavy, spooky motion. If it was as big as Theo's creatures it would mulch any puppies or small children caught in its path. And if it want to, it could bring them or any other prey closer with its extendable grippy claw.
They're not sure yet if they're going to sell the kit, which uses standard Vex electronics, but new customised metal parts. If they do, they'd be aiming for a $US99 price point.