The Irritable Tank (イリタブルタンク Iritaburu Tanku?) is a bomb-like Unversed appearing in Kingdom Hearts Birth by Sleep. This Unversed is a rather sturdy enemy. If hit from the front, it will glow red, swell, and become immune to damage for a period of time, then explode like a bomb. The best way to defeat one completely is to attack the golden wheel from behind.
It is a large Unversed with a spherical body shape with a gold valve wheel on its back. It has a small head with prongs on it resting on top of a jagged collar. Its small arms resemble tops. There is a large red stripe separating the black top half and its blue and red striped bottom half.