The Terrorbones was a Mythical fish that was only available during the Halloween Event. Since the event has ended, it can no longer be obtained through normal gameplay, making it a limited time collectible for players who caught it while the event was active.

Obtainment:

The Terrorbones could only be obtained by fishing during the Halloween Event. After the event ended, the fish became unobtainable and is no longer available through normal gameplay.

Additional Information:
During the Halloween Event, the Tiki Outpost was the recommended fishing location for catching the Terrorbones. Using Good Bait or Carnivore Bait improved the chances of obtaining it, making them the preferred bait choices while the event was active.