Fun, fun fun for my cat. She runs around the house and dives on this game to make the balls go around. Then she lays on her side and swats them, stops them, (I purchased the Bergan twinkle ball for it as well)  and swats them again. She uses the scratcher as well. Best toy ever for her, and no we do not use any "wacky weed" (my name for Cat Nip), to cause her to run around, she just loves this toy.