Titan Tails is the result of a portion of the "Chosen One" prophecy, the combined form of Tails, and all of his counterparts from all Zones. It has only appeared once, for the sole purpose of delivering a "Final defeat" to Mammoth Mogul. Zonic the Zone Cop recruited all of the zones' version of Tails to stop Master Mogul from destroying the multiverse. In their individual forms, they were useless against Mogul, but when Mogul was about to triumph, Tails merged with all counterparts to form Titan Tails. Titan Tails absorbed all of Mogul's power, and restored all of the zones, while trapping Mogul in his own Chaos Emerald, as part of a trap set by the beings that composed the prophecy: the Ancient Walkers. (StH: #149, #150)
- Titan Tails was meant to be a closure to the Chosen One legend, though it doesn't quite match the whole "Uniting the Chaos Emeralds" and "Great Harmony" mentioned in the Tails Miniseries, though Tails would deal with these later, simply as Turbo Tails. Additionally, Mogul escaped upon the death of the Ancient Walkers, rendering the ordeal pointless. Despite this, memories of this battle linger, as Anti Tails mentioned the tale of "Chosen One."
- When asked if he had plans for Titan Tails, writer Ian Flynn said no.
- This is one of the two transformations that the characters burst out of their gloves due to their immense size. The other being the Werehog.
- Titan Tails is noted as being one of, if not the most unpopular super transformation in the whole series by the fandom.