Best NES Megaman game by a country mile. The robot masters are just fine without weaknesses. I love how it actually introduces new platforming gimmicks in the fortress stages and the bosses are so huge and varied.
It was good, but can't help to think it's a watered down version from the third game. Much, much easier and less inspired. You can cheese all the bosses easily by using their weakness. There's also so much cheap level design. Still, not bad at all.
Having to go through Dr. Wiley's castle after Dr. Cossack's really makes this game outstanding its welcome. Especially when you have yet another stupid boss rush awaiting you.
Still, not bad at all.