Wait...it sounds to me like the other manuals retconned the MM1 manual out of existence, so wouldn't that mean that both regions are the same canon then?
that is exactly what it means. nowadays we have very little of the old localization blunders of old. plus, even though the US games had Megaman discover that Proto was his brother, where in the japaese story he still doesnt know, we dont have the glaring error of Wily having worked with Light as an assistant. the folowng games to 1 corrected that localization change.
But Proto's line towards the end would imply that he knew Wily was a nutter before the events of MM1/MMPU (and that he ran off before he got the shades and scarf, since Wily doesn't recognize him). That's not the same past that leads up to RMRM or MM3.
The way I see it, any of the playable characters besides Megaman in Rockman Rockman, are what if's, they are alternate possibilities, alternate timelines in which that robot was left. but in all, they are not relevant to the current story, they only add some food for thought, nothing else. they are not what really happened in the end.
you decide and not what Capcom USA has decided.
thats the thing, Capcom of USA has no say in the story. what Capcom japan says is the story is the story. what Capcom of US says is the story is irrelevant and not canon. the game is made by Capcom japan, and the people there are the ones who decide what the story is. they then leave capcom US to tanslate the games and localize them. Capcom US decided it would be a cool twist to add that Wily was Lights assistant and that he rebelled. So they wrote that into their manual. However, that is not what actually happened. It is not canon. there is no such thing as a Japanese Canon and a US canon. Its just one, mega/rockman canon. only the Localization changes things to better suit their personal tastes, and what they think the local audience will respond better to. that does not make that the true story.
If a Shakespeare book says that Romeo and Juliet in the end killed themselves because the other was dead, Romeo with poison, Juliet with a knife, that is the story that Shakespeare wrote, correct? now, when that book is localized in France, they decide to change it so that Mercutio was actually Romeo's brother. and that Juliette had a sister named mary who died before the story started. That is not the proper story, that is a non canon add on to appeal to the French audience better. it was not what its creator intended, and therefore not canon.
this is the same thing, basically.