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.
Crazy Awesome: Metal Man is a sawblade wielding lunatic who nicknames everyone and fights the mob with his blades. He doesn't attack people but only because he can't mess up his blades by getting blood all over them. At one point Proto Man, Cut Man, and Guts Man have to drag him to safety because he insists on having an epic Bonnie and Clyde-esque last stand against the cops.
Dust Man is a Cloud Cuckoolander who drives around in a creepy old van, fights pests and animals around the Skull Fortress, spends his time scaring the other Robot Masters with weird ghost stories and his general weirdness, and has a vacuum cleaner as a weapon.
Crosses the Line Twice: Ring Man trying to hit on Roll in "Mega Pinocchio", which ends in her trying to shoot him in the face.
Idiot Plot: It's lampshaded repeatedly that the conflict in "The Mega Man in the Moon" could be solved in seconds if the president and Senator Wolfe just got over themselves, stopped causing problems with the UN, and let Duo deal with Wily. It's actually enforced; the Syndicate wants the R.I.P to stay out of America and are manipulating things to keep them away.
I Knew It: The author noted in the author notes of "The Mega Man in the Moon" that several fans managed to correctly guess that Senator King is working for the Syndicate.
She also gave credit to readers for correctly guessing that "The Great One" is actually Ra Moon.
Memetic Mutation: "It's not a banana!" Explanation In "Cold Steel", the titular band comes across a card left by the Steel Crescent Syndicate and dismisses it as a drawing of a banana. The general response from readers was "It's not a banana!"
The Woobie: Mega Man. Holy crap. The poor kid just wants to perform science experiments but instead is constantly forced to fight Dr. Wily and his forces, with all the physical and psychological issues that entails. He develops massive self esteem issues and begins to wonder whether he's a human or a robot. He has to deal with constant family problems and his brother tries to kill him on a regular basis. It's very hard not to feel bad for the guy.
Uncanny Valley: Oil Man has a liquid-like design and a creepy face reminiscent of old cartoons.