Although one could interpretate it that way, the song doesn't mention names. Also, while it is her theme, it doesn't mean she is the one singing it. And even if it is, it could be a music she liked, like Proto Man's whistle in Gigamix. The only song actually used by a character in a story is Freesia by Ciel in MMZ4.
In case you don't know yet Mega Man 5-7, X3, Zero 1-2, and Battle Network 1-3 are currently being planned for release on the Wii U's Virtual Console other than the fact the games that were part of the Mega May event are being planned for Europe. Here is the source link. 
The game is not the same as M.U.G.E.N., which is an engine and not a game by itself. If the article's content was removed because it was fan-made material, shouldn't similar games (such as Mega Man Revolution be removed as well?
But isn't Mega Man 9 done with the MUGEN engine? Due to its customizing nature, any kind of Mega Man game is possible, so isn't it better to have an article about the engine with a link to the MUGEN wiki, which has articles of games made with it, than multiple articles of games made with it here? If you want, you can add those two and more there.
I found this template at the bottom of one of the gallery pages. It didn't have any links to the few pages it had listed, and hasn't been updated since 2012. It's admin only protected, so could you give it a look?
Your Otaka page had this: "Otaka is an 11-year old girl with a HUGE crush on Mega Man. She appears in Mega Man 8 as Roll's assistant, then again in Mega Man World as a playable character."
Well, if you want to start your own wiki for your content, you can make a request in the "Create a wiki" button in the top right of the screen. Fandom isn't allowed here because this wiki is only for official content. (with strict exceptions due to their relevance or popularity, like Air Man ga Taosenai and Mega Man 10 Unlimited)
|caption=Otaka in ''[[Mega Man World]]''.
|eyecolor = Blue
|hp=40 (Mega Man World)
|at=1 (Gekusami Kick)
|weapon=[[Gekusami Kick]], [[Watasuki Throw]]
|weak=[[Spikes|Lethal]] [[Bottomless Pit|hazards]] (Mega Man World)
|appearances=All games in the original [[Mega Man (series)|Mega Man]] series<br/>[[Rockman ×over]]
|appear2=See ''other media'' below
|voiceactoreng=Michelle Gazpis (MM8), Andrea Libman (MMW)
|voiceactorjap=Konami Yoshida (MM8, MMW)
Otaka is an 11-year old girl with a HUGE crush on [[Mega Man (character)|Mega Man]]. She appears in Mega Man 8 as [[Roll]]'s assistant, then again in [[Mega Man World]] as a playable character.
Hey Quick! There's a problem with Sean Obihiro's MMBN page! It states that Freezeman is Sean's navi, even though Freezeman in MMBN2 actuallyoperated on his own, and it was only a quick match in MMBC did Sean operate him.
More proof that Freezeman is not Sean's navi is the fact that in the MMBN Complete Works book, every operator has they're navi emblem beside they're name, but Sean doesn't. As he doesn't have a navi emblem by his name at all! And it says nothing about there being any connection with Sean and Freezeman (And the book IS up to date with every BN game in existence...).
You think you could change the part where it says that his navi is Freezeman to saying he only 'Temporarily' operated Freezeman in Battle Chip Challenge? Kinda like this...
(Just thought that the info should be more precise is all...hope I didn't write too much). Thanks!