​Launch the glow-in-the-dark Gunkster at the glow-in-the-dark sludge monster and knock it out! ​Designated smash spots tells kids where to aim Gunkster to defeat the sludge monster. Be careful! Miss the mark and the sludge monster attacks! ​The base moves and shakes, allowing kids to feel the power of their smashing and crashing in their hands. ​Fill the grandstands with additional crushable or die-cast cars, or place crushable cars in special spots on the set to enhance the destruction. (1 Hot Wheels Monster Truck Glow-in-the-Dark Gunkster and 2 glow-in-the-dark crushable cars are included. Additional trucks and cars sold separately.) ​Kids can connect this set to other Hot Wheels Monster Trucks Arena Smashers sets for open-ended play and adventure. A monster has seeped into the Hot Wheels Monster Trucks Arena, wrapping it in a glow-in-the-dark sludge and it's up to Gunkster to defeat it. This Hot Wheels Monster Trucks Arena Smashers set allows kids to feel the power of their destruction in the palms of their hands with a base that moves and shakes with every crash and smash. It also glows in the dark for visually thrilling action and includes one die-cast glow-in-the-dark Gunkster Monster Truck and two glow-in-the-dark crushable cars to add to the grandstands. Kids can connect it to other sets for a massive arena. Each set sold separately. Colors and decorations may vary.