The Illimitable Tank (イリメタブルタンク Irimetaburu 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 and sweel and an effect is that it will be immune to damage until an amount of time is reached, then it will explode like a bomb. The best way to defeat one completely is to attack it from behind.