In this collaboration between Jurassic Park 30th Anniversary and Tamagotchi, you can raise dinosaurs! If your dinosaur is hungry, you can feed them leaves and nuts if they are herbivores. Carnivores will dine on meat and fish! When they are in a bad mood, give your dinosaur a snack or play the three mini-games. You can play "Which One?", "Escape", and "Catch Food!" along with your prehistoric pal. Depending on how you take care of your baby dino, they may evolve into over 20 different dinosaurs. In addition to nurturing characters, rare dinosaurs may appear! If you don't take proper care of your dinosaur, they will leave you. The Jurassic Park 30th Anniversary Tamagotchi Dinosaur Egg Version measures about 1 1/2-inches tall x 1 1/5-inches wide x 1-inch long. Requires 2x "LR44" batteries, which come included. Ages 8 and up