The ultimate prehistoric play experience! GrossMos combines the thrill of unboxing with an exploration that’s OOZING with surprise. Excavate like an archeologist, sort through the fizz and slime, and discover a hidden dinosaur that needs to be put back together. Add water and watch as the dino begins to foam at the mouth… ?Pry open the jaws and excavate bones to assemble a smaller dinosaur…?Once assembled feed them the toxic sludge and then squeeze the body to see where the green slime shoots from!