Easy's embarrassing.
Hard Mode is bloody relentless, though. I beat Blade Man, and bloody if I got to Strike Man that same day. And Chill Man H shoots 3 shots and has a spread attack?
Forget Hard Mode; I can beat it in time, but I want to have fun doing it, not this tedious junk. And they've violated so many boss movement/attack design principles in this game, I lost count at Weapon Archive NAPALM whacking you over the head just about no matter where you stand and THEN huge ass bombs that most of the time you can jump over, but if the prior happened to you, you need the slide. Not to mention speedruns aren't as fun as 9's. And then there's the ending.
MM10, though not a bad game, is even higher on my Hit List than MM2 and on about the same level as MMX6.
Good thing it's got bloody good music...