I bought the pieces of Raiden all new in 2008-10 ish. Somewhere in there. I built him and put him in my display. I have moved since then, but he has always been in a separate building with no windows and air conditioning. I brought him home yesterday to show my wife the comparison between him and the new 3P giant and I was disappointed to find yellowing on the left (outward) side of the left legs. It is a white bullet train. I don't know their names. But I thought he was totally safe from yellowing and I guess not.