Read this on some random forum...thought it was a good read.
Anyway sorry in advance about the whole Guile subject again lol.
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During the time Magus left to go search for Schala, was during the exact
incident where Janus is supposedly going to go through dimensions crossing
over. However, when this event transpires, it is at the exact same moment which
the Time Crash occurs. Janus instead who can not time hop, does get spliced
into the dimensional vortex creating a rupture which makes several unconscious
Time Doppelgangers, which are not aware of anything because those dimensions
themselves have been created. The same time Janus stepped through the portal,
all of a sudden the Radical Dreamers dimension was created off of an alternate
split reality. Janus then was lost in that space of the momeny, creating an
alternate time doppelganger in a reality never his own. Because Janus in this
instance never went through the dimensional gateway, and did not ever become
Magus later on, he stays the same.
Thereofore Janus of Zeal, who at that moment of the Time Crash, was lost into
another being. Alfador on the other hand did not travel anywhere near the
present time, he instead got lost in the chaos. The other being washed up on
the shore in 1000 AD with no memory whatsoever of his origin, a "spawn" of
another lifeform. This being quickly became a traveling magician, called Guile
by the people of Termina. He did whacky fortunes, and told funny stories while
he collected his weight as a magician to take on an even larger stake: That of
discovering the truth which was hidden from him like a black veil. He learned
the trains of a magician, however, knew no such special spells, only little
magic tricks. He met up with Serge and CO who were off to defeat Lynx, and
needed something to pass the time. He went with them, never deciding to take
off his mask because he liked his enigma qualities, and when he reached the
Frozen Flame, he stumbled back. Unaware that such a power could have existed in
him, perhaps, but never will. He exclaims in the game if you have him in the
front of the party "I am not that ...No....It's not possible....I am not
that!!!" and indeed he is correct, he is not that. Guile is a ripoff time
doppelganger of Janus, he has no correlation to Magus whatsoever. He only had
the appearance of that of Janus, not Magus, nor even knew what the Mystics
were. He was born, and bred, an idiot. After that event, he seeked to repay his
gambling debts, perhaps Sneff knew what his life was really like hmm??? Or
perhaps the mask he takes off in front of Kid which produces no reaction when
he loses his 'bet'. Guile always wished to be something he's not, something he
could never be.
-- Theory Credit of "Zelda Dude"
Also I've always wondered how Guile floats exactly like Magus when you run...