What. How the f*** did Regigigas become a species of legendaries. :O
The same way the lesser Regis did; by being an artificial construct any sufficiently advanced ancient human civilization could create.
The people in Sinnoh were just fools who made their Regigigas out to be more important than it actually is.
Damn, that's impressive thinking. I'm sticking to this explanation. --- Final Fantasy Marathon! Finished: III, IV, V, VII VIII Currently Playing: IX Yet to finish/refinish: I, II, IV: TAY, VI, VII:CC, Tactics: WotL