Preliminary: Even though they were released in the same month, I am going to play the original "Rock Man" Japanese version, since I was all excited to finally be on Final Fantasy (one of the first games I played and rated while on this site), but the Japanese version of Mega Man came out 4 days before Final Fantasy haha.
Welp, Iceman is down. Not really sure why this is called Rockman? Haha. I have been super into my backlog recently, this late 87 time is full of good games. This game is clunky, the graphics are quite disappointing, there's no clear difficulty curve since you choose where you start, but it's got that addicting vibe, started a franchise I've been excited to try for the first time, has learnable quirks/mechanics (so far), and Megaman as an image is important/nostalgic to me from my involvement in early 2000s webcomics heh. Seems this will be a fall playthrough indeed...
Play: 7/10
Clever way of setting up the game: rather than a linear or open-world concept, you're basically choosing stages. At first I thought of them as separate fighting scenarios, but your weapon upgrades do carry over. So, I was loving doing the Fire stage with the Ice Slasher. Overall: Frustrating, yet classic and clever.
I'm never a fan of endlessly spawning enemies in action platformers, defeats the fun of having found a clever way to beat them then find out they just respawned anyway. And a lot of the gameplay (and Sound and Look) wound up feeling tedious. But I do love the Megaman series (well, I think... I didn't play that many lol) and the gameplay was hooking and fun enough (and the death mechanic relatively forgiving, with a sort of checkpoint system).
Feel: 8/10
Quickly across play sessions I was getting into the "process of elimination" type gameplay here. They did a good job making it very replayable by clearly having weaknesses for many of the bosses and allowing you access to any of them (except the final boss) whenever you turn on the game, so you could learn these over time. It's disappointing they didn't make a save or password system, a password system would've been easy enough just marking which bosses are killed and what weapons you have. Thank goodness for savestates heh.
Sound: 8/10
Great select-your-stage screen music, otherwise mostly mediocre. The Elec Man level jingle is good tho. Like really good ha. And the Wily Fortress 4 and ending jingles were great.
Attachment: 7/10
If only the Look or Sound were better, or I had more attachment to the later Megaman games, cuz I'm reallllly considering quitting during Guts Man level. That platforming part... Took me a death but I quickly realized that they drop down when going over the dashed line parts, but the way they timed the platforms makes you have to wait so long for the next one to be timed to jump to (at least in this one). That results in it just being tedious, not so much just challenging. And I don't like tedious. The Cut Man level was much more enjoyable and now I only have one more stage before the, uh, final stages? So I will stick with it I think. Maybe Guts Man is just an especially hard level. I was getting that feeling I love with NES games where I was getting used to its quirks (tho still don't like some of the tedious shooting enemies, some of the enemy maneuvering, and that platforming part in Guts Man level) and feeling good at shooting fast and quickly dodging things.
Oooo I love the Magnet Beam! Cool idea, sorta like the platforms made out of frozen enemies in Metroid (or, indeed, the frozen fire beams in this game ha). My goal is to finish the minibosses tonight but running out of time! Nice, I did it! I will do Dr. Wily's Fortress tomorrow haha, seems like it's a good chunk of the game. I hope I don't have to relearn the quirks, it helps when I just play a game straight through, but time to call it quits for tonight. 
Welp it's the next day and I'm pushing through the Fortress. It's tough for sure! Making use of all the different weapons. The clone was a cool idea (albeit Zelda 2 did it before this butttt this makes sense in the plotline anyway), and the Sound and Look of that room were great 
Alright the final boss sucks though. OMG THAT WASN'T THE FINAL BOSS. Lol I screenshotted and everything thinking I was done. Okay I need a break. The NES took way too much pride in having difficult games. (Welp, of course I came back and finished it, which says something good about the game's attachment. But I don't think I ever want to go through this again lol). The ending, however, was a treat! So that almosssst makes up for how brutally hard parts of the game were (Wily was more manageable--thanks to some StrategyWIki tips about how his attacks work--than Fortress 3 boss imo) 
And there were 2 great jingles for the ending! 
Y'all know how much I love colors like these as it faded to evening

The man behind the armor! (plus love that background) Cute ending overall. Helped save some frustrations with the more difficult and tedious parts of the game.

Completion: Main Story
Playtime: 2 hr