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.
Harsher in Hindsight: The entire song "Funeral For A Son" in light of Act II. In particular, this excerpt from the liner notes:
Light notices a tear streaming down the dorsum of his hand and feels a breathtaking weight in his chest. What is this? Frustration? Humiliation? Hatred? Certainly, these are there too.
But no, this is more than that. These emotions are his life. He has lived with them for so long that they no longer affect him. Over the years he has learned to fight them, then to ignore them, and finally channel them into his work, his creation, his machine, his son.
Light's impassioned "YOU ARE ALL THAT I HAVE LEFT", from 'Unrest in the House Of Light', in light of Act II, becomes even more chilling.
Magnificent Bastard: Wily. Gains dominance over the public mind by pinning a murder he committed on his only plausible rival, check. Embraces villainy in the process, check. Sounds awesome doing it? Double check.
Moral Event Horizon: The crowd gets one in Act I for making Megaman kill his brother, right after he tells them all to grow a pair and fight back. Then, after Protoman is killed, the crowd asks Megaman why he's crying for his death and then proclaim that "You are our hero!"
Wily crosses it in Act I when he orders the deaths of hundreds of his citizens just for watching. However, this is not actually his Moral Event Horizon, since Act II establishes that he crosses the line much earlier: he ordered the machine that he built to kill Emily, watching her die simply because she chose Light over him. As if this wasn't enough, Wily further cements his status as an irredeemable villain by pinning Emily's murder on Light, and taunting him for his inability to escape his fate. He even admits there's no turning back in The Hounds.
Narm Charm: A reckless teenager suddenly trusting a homeless middle-aged man and plotting to save a city sounds like something that should be ridiculous. It isn't. It's awesome.
The Woobie: Dr. Light. Seriously, after listening to Act II, one can get a sense that, useless as it may be, the old man needs a hug. He's been betrayed twice so far in the story (Wily framing him for murder, Protoman joining Wily), lost his girlfriend, his city, and his son(s) (depending on Mega's fate and whether Joe counts). At least one member of the official forums pointed out that with the way things have gone for him, the next bowl of cereal he pours will probably just burst into flames.
Protoman, as the City watched him die trying to save them, did nothing to help him, and when he told them to stand for themselves they ordered him dead.
The band is a Woobie, especially as you learn more about the members and how it was created—when they started out, they weren't expecting to be liked.
If anything negative ever happens to Panther, people will start crying and wish to give him hugs.
In one interview, KILROY offered the interviewer a high five. He ignored it. You can see the poor robot's face fall.
Cobra T. Washington was in 2 other bands and had to learn all the songs and cover songs in under 2 months. And he lived in Mississippi, far from the band's home base in Nashville, which meant he had to drive up for every show.