Neither of my cats showed any interest in this toy at all. I don't think there's any catnip in it. You can't smell anything, and neither of my cats played with it. I'm disappointed!
Do my cats react to catnip – I still don’t know, so I can’t rate that part. What I do know is that the watermelon is well made and, unlike many other similar toys, it’s survived several months already, even though my 6kg tomcat has been biting and kicking it quite enthusiastically. ;)