[KRX]

I've been having a bad day. So now I'll vent my anger out through science!

Now, I have never watched the actual series for Kuuga. But I have seen Decade, and have researched the character, being the obsessive freak I am. The Arcle is biologically attached to Yuusuke. When he transforms into Kuuga, the Arcle releases a mutagen that temporarily alters Yuusuke's DNA. I can't remember whether it was that of the original Kuuga's or that of the Linto, but that fusion triggers a chemical reaction that causes the Kuuga armor to encase Yuusuke, as well as act as an anabolic steroid and strengthen his muscles.

I think Agito would follow a similar concept. I have yet to watch Agito.

The Riders of Ryuki utilize the use of tachyons once again. According to String Theory, it is completely pissible, in fact guaranteed, that there is an infinite set of realities that we could potentially see through reflections. As such, the Advent Decks are designed so as to trigger a vision into a reality where the belt floats in a reflective nothingness. The belt is designed so that upon sensing the Advent Deck, it will travel through th 10th String and clasp on to the user. Inserting the Deck will cause a tachyon field to envelope the Rider long enough for a rift in the continuum to envelope the Rider in the Rider armor.