If a kitten continues to play aggressively despite efforts to discourage such behavior, cat owners should first ensure they are providing ample playtime with appropriate toys that allow the kitten to express predatory behaviors safely. It's crucial to avoid using hands or feet as play objects. If the behavior persists, consider increasing play sessions to expend more energy. Consistently redirecting the kitten to toys during aggressive play and immediately ceasing interaction if bitten or scratched can reinforce that aggressive play leads to no attention. If these methods fail, consulting a veterinarian or animal behaviorist is advisable.