A few things:
One, it is "Shishi Origami", not "Sisi". Blame really bad romanizers over at Bandai/Toei/TV Asahi for that goof. (Shishi translates to lion)
Two, there is one more area that has die-cast: the top of the torso which has part of the "fire" kanji emblazoned upon it.
Third, there is a hole in the figure's crotch area. It's used for, I assume, attaching the figure to a Figuarts display stand.
Finally, though it be minor, the dragon's mouth actually opens.