Well best I can tell there are roughly five different "fudous" that can return depending on how you'd like to spell it in Japanese.
不動: ふどう
(P, adj-no, n) immovable, motionless, firm, unwavering, unshakable, steadfast, (P, n, abbr) Acala (Wisdom King), Fudō, fierce Buddhist deity
浮動: ふどう...