Whelp, I've beaten Battle Network 6 (Fucking downer ending, explained below), found a copy of 1 and 4, and returned Zero. Seriously, fuck that shit.
Spoilers
Not that you ungrateful shits care
So you kill the Cybeasts, but, OOP, Megaman is also part Cybeast still! So Colonel and Iris (Colonel's 'sister'; the anthropomorphic appearance of his kindness) decide to unite and blow each other up to tear the Cybeast out of Megaman. They succeed, Wily mends his ways, Baryl gets away, blah blah blah.
The game pulls a "20 years later" and I'm all sad and shit because I fucking loved this series. Now we have Faggyfag Shitforce which is terrible.
Fuck you Capcom.