Caillou: Magic Playhouse is based on the animated television series starring bald-headed little Caillou, a 4-yr-old boy, and his adventures with family and friends. In this game, you follow Caillou as he visits each room in his house and the backyard searching for treasures (from a themed group - sports, music, sun & sand, or nature - that you pre-select) and playing games. Choose a skill level - 1 to 3, which can be changed mid-game if a given activity is too easy. Use the mouse to click on items in each room to discover mini-animations and "hidden" objects. You will also make use of the click-to-pick-up/click-to-release feature in some of the games, as opposed to click-and-drag, which may make the interface easier for the toddler to use.