Expert Collector of Crazy Bone Cats Expert Collector > Page: 28 Acquiring Req.: Collect at least 50 Crazy Bone Cats. Reward: When collecting Crazy Bone Cats, the Collectable Item is doubled. Crazy Bone Cat Lv 28 Crazy Bone Cat's Natural Enemy Natural Enemy (21-30) > Page: 16 Acquiring Req.: Kill at least 51 Crazy Bone Cats. Reward: Killing Crazy Bone Cats grants you bonus XP. Crazy Bone Cat Lv 28 Legendary Crazy Bone Cat Hunter Natural Enemy (21-30) > Page: 16 Acquiring Req.: Kill at least 119 Crazy Bone Cats. (Crazy Bone Cat's Natural Enemy Title is required.) Reward: Killing Crazy Bone Cats grants you bonus XP. Crazy Bone Cat Lv 28