We bought this for our dog Brody because he gets bored easily and quickly loses interest in gummy bears, squeaky balls, tugs etc. He LOVES the thing because it "plays". " with him! He chases him around the room, barking at him and trying to grab him. But as he approaches him, it suddenly takes off from him. It's driving him crazy! He's very persistent because he's a few times but when he did he just passed out so he let it go he couldn't do anything to him. Brody also has balls that glow and blink when they hit but he likes that "UFO" "-Toys preferably!