Meet the Critters and get ready for creepy, creative building fun. Kids can choose their favorite monster character and bring it to life using colorful building blocks, specialty eye pieces, and glow-in-the-dark accents. Whether watch out for Bolt's wild experiments, Grim's bubbling potions, Wib's clever traps, or Nom's endless appetite, each set comes with easy step-by-step instructions to assemble a single spooky creature or mix and match for open-ended play.