Here is one of the craziest cat toys we have tested. The P36 is a robotic ball with a rope attached to it that makes random movement. It has a rechargeable battery and a USB-C charging port. You can use it on a variety of surfaces, including carpet and even grass.
This toy not only makes crazy movement on the floor but also a chirping sound. It has two different rope attachments (straight and angled). You can press the main button to change mode. More info is available here.