We adopted two kittens, a boy (Eustace) and a girl (Wendy) a year and a half ago. They often wind up play fighting as in the video, though Wendy sometimes decides she has had enough, and leaves.
Prior video: How Junior met Pamuk...
https://www.youtube.com/watch?v=0nqiYJmT_rU
4 minutes, 4 seconds