These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Megas
Alternate Character Interpretation: Not only are their own characterizations of the character this, but even within the songs themselves this can be applied. Is Flashman gay for Megaman, or just afraid of his power? Does Heatman want to burn the world For The Evulz or because he's insane (or because this is how he mourns)? Are people terrified of Air Man because of his monstrous appearance or because he's an insane robot built by a mad doctor with the intent to have him kill them?
Quick Man's song suggests he's trying to say Screw Destiny by killing Mega Man.
Does Roll reciprocate Magnet Man's feelings, simply trying to protect him from Mega Man, or does she want nothing to do with him?
Is it possible that Hard Man has fought against the people of his town and are victims of Stockholm Syndrome or do they really adore him despite being a Wily bot?
Who is the "rat" who betrayed Gemini Man? One interpretation is that one of his personalities betrayed the other.
Did Wily give the Robot Masters personality quirks on purpose to make them more sympathetic? Its hard to tell when we don't really hear about the fact that they commit crimes in Wily's name. Although Air Man outright states that he will destroy the humans.
Continue is basically a case of Alternate Song Interpretation, as while it's clear the song is about Mega Man, the fandom is still not sure who's supposed to be singing it to him. There are strong cases for Dr. Light and Roll, and even Dr. Wily and Proto Man.
Similarly to Continue,Make Your Choice is either a duet between Mega Man and Proto Man or sung by Gamma.
This is encouraged by the Megas. While they obviously have their own interpretations for how the songs go, they generally keep them to themselves so that people don't take said interpretations as law and stop coming up with new theories, such as explicitly refusing to elaborate on who sings Make Your Choice.
Accidental Innuendo: Probably unintentional, but Woodman is the master of machines... and of the birds and the bees?
Well, seeing that he is Wood Man...
Designated Hero: Wily and most of the Robot Masters view Mega Man and Dr. Light as being this in-universe.
Ear Worm: The entire band qualifies; specially if you're a massive Mega Man fan.
Fandom Rivalry: There's a one with The Protomen, due to them both being Mega Man bands that involve lyrics (with absolutely nothing else in common). Jokingly brought up by the Protomen when their site was hacked, as they joked that it was the Megas fault.
Foe Yay: Blue Like You. Oh dear God where do we begin...
How about the chorus?
Hey Mega Man, join my side/And let me stop this moment in time/You'll be mine, forever.
However, it doesn't appear to be a random choice to give him the Foe Yay. He does seem to have a Freudian Excuse for this rather... Freudian goal:
What Mega Man and my brothers don't know / Is this flash is all for show ('cause inside) / there's nothing there, and there's nothing to me / I'm empty and I'm hollow!
This flashy suit and this flashy stage / I use only to hide (the fact that)/ I am lonely, and I need somebody / Like Mega Man, by my side!
Growing the Beard: The general consensus about the MM 3 album; Get Equipped was lighthearted but a bit formulaic, while the new album has deeper lyrics and different song styles and themes.
Ho Yay: Listen to Hell Has Frozen Over and try to say that it doesn't smack of a love declaration between Fireman and Iceman.
I will fly high above Monsteropolis / and I'll rain terror down on the general populace.
Another example from Melody from the Past:
''You are the one the hero who will stand/Do not blame fater he is only a man.
They Wasted a Perfectly Good Plot: Word of God has said that they probably won't be doing songs for the Robot Masters past game 3 (except for a few select songs), which really is a shame since there's plenty of potential there.
The me that used to be here, has gone away but I can't say where. I think that I may have killed him... I'm so scared.
Even Dr. Wily makes a play for this in "Gamma Unchained":
Iíve heard the names that they call me. Some sting and some canít help but ring true. I have to live with what Iíve done and find the strength to continue. So tell me why Iím the one that they fear and for him they cheer.
By the time of "History Repeating", Mega Man himself shows signs of this.
History repeating / Who do I call when I'm broken and bleeding?
By the next album, it's pretty obvious:
Why did he give me voice? And still choose not to hear me. Just white noise...