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A Tailbunker is a large, draconian creature with predominantly dark green skin, save for its belly, which is tan, and its wings, feet, and the tip of its tail, all of which are brown. Its body is rather thin, while its three-toed feet are quite large, each sporting yellow talons. Its wings seem rather short and bulky when compared to its feet and tail, and its wingtips are vaguely reminiscent of the Nobody symbol. The Tailbunker's tail ends in a large, misshapen club with three conical, yellow spikes on it, and its head is V-shaped and flat. It has beady yellow eyes on either side of its head, and its Heartless emblem is on its chest.
The former part of the Tailbunker's name references the size of the Heartless's tail. The latter part of its name could be referencing bunkers commonly used during wars for protection against falling bombs. This highlights the Tailbunker's ability to shoot fire balls from the air.
Lock-On immediately, as the Tailbunker will shoot a few fire balls at Roxas. Dodge Roll them and head for the Heartless. The Tailbunker will float around a bit, barely doing anything while Roxas can jump and do one or two hits to it. It is recommended that Roxas use Blizzard magic here so stock up a few casts, as well as some Ethers before entering the battle. The Tailbunker will sometimes land and charge up for a few seconds to ram itself into Roxas, providing an opening to cast some Blizzard spells, but be careful and don't let it hit Roxas. Sometimes it will just sit and attack with its wings, but just jump and attack again when this occurs. This is not a hard battle overall, as Roxas can easily chip away at the Tailbunker's health with a few combos. Also, remember to use Potions and the Limit Break.