IMO, about games in general, the thing isn't about issues, it's about the strengths. It's not like Megaman 3 is a flawed product, it isn't. You can have a flawless product, and that product can be a boring game. And also, you can have a product with small flaws that are totally forgivable if you have a memorable adventure that justifies it.
So, my problem with Megaman 3 isn't the flaws. Simply, I don't find a real strong point to catch my attention to that game. But maybe it's me. Usually, it's the most praised game after Megaman 2. The concept of level design is a bit overrated when people reviewed games. There are other aspects that made a game a historic masterpiece, and it's the way to find a path to the gamer's heart (And I think Megaman 2 did that).
Edited by Air Luigi, 18 September 2014 - 07:14 PM.