I was wondering if the incomplete Shadow Armor without the head program has green colored shurikens instead of orange (if the arms program is already obtained).
But if you think it is not a good idea. I believe having the saber color and speed is fine.
I also find it better I think if we can localize Zero's special moves better...
Hyoroga into Hyourouga
Shoenzan into Shouenzan
Rakukojin into Rakukoujin
Rekkoha into Rekkouha
and the description of Rekkouha on the weapon get screen is a copy from the Ray Arrow. I believe it is better if it is a command like the rest of Zero's special moves.
I just currently researched it when I was further learning more Japanese romanization.
And for some time I forgot where specifically in the game but I seemed to saw the word "reploid" with a capital "R" which I believe should be in lower case because reploid is a common noun and not a proper noun.
Overall the game is really in good shape. Glad that I can be of help for this project for you and thanks again for initiating this Tweaks and congratulations this project is really awesome for the Megaman X fans to revisits X6 and have it. https://drive.google.com/open?id=1EcklCb7GUFKp9zUa5_W43g2pcSTLAu83
Here's the link of my customized PSX2PSP files with all the pics and software manual. PSX2PSP is not included just google search it. Anyways I updated the software manual a bit.