I'm not aware of anyone who has a problem with MHX's art while not having a problem with X8's art...
I can't speak for Flame, but for me personally, I don't care too much about the MHX helmet itself. X and Zero have both seen plenty of minor detailing inconsistencies over the course of the series. What bothers me is WHY it happened; that a simple matter of in-game modeling convenience (and badly done at that; MHX's character models are ugly) takes paramount over the official artwork. Yoshikawa's entire redesign philosophy appears centered around what is most efficient for the game engine, and I don't agree with that. While it's true that, to some degree, how a concept will be represented in-game is always a concern, the X-series design style was never especially easy to work with. Ever since the first game, the artwork detailing went well beyond what the SNES sprites could possibly represent, and this became increasingly obvious throughout X2 and X3. X-series character designs are their own, and are not especially subject to their gaming platform limitations. The design comes first, and you then ask the best way to represent it within the limits of the hardware, rather than asking what design best conforms to the hardware. Yoshikawa's approach just feels like a large step backwards; it's mentality that I expect from the NES era, not in present day gaming.
"Even though the game can only provide pixelated representations, I like to believe that all of the characters and awesome scenes come to vibrant life in the minds of our players."
~Sensei, MMXOCW, page 54
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