Expert Collector of Frenzy Zombies Expert Collector > Page: 11 Acquiring Req.: Collect at least 50 Frenzy Zombies. Reward: When collecting Frenzy Zombies, the Collectable Item is doubled. Frenzy Zombie Lv 19 Frenzy Zombie's Natural Enemy Natural Enemy (11-20) > Page: 11 Acquiring Req.: Kill at least 27 Frenzy Zombies. Reward: Killing Frenzy Zombies grants you bonus XP. Frenzy Zombie Lv 19 Legendary Frenzy Zombie Hunter Natural Enemy (11-20) > Page: 11 Acquiring Req.: Kill at least 63 Frenzy Zombies. (Frenzy Zombie's Natural Enemy Title is required.) Reward: Killing Frenzy Zombies grants you bonus XP. Frenzy Zombie Lv 19