It has a steep learning curve and some of the Reploids can be annoying to rescue, but it's really not all that bad with the exceptions of some stages like Lava Factory or Crimson Palace. IMO X6 is much, much worse, especially with how the Nightmare Phenomena and Viruses work....

...is complete BS but I need the Falcon Armor for achievements. I'm supposed to collect all of those dumb balls? How is that even possible?! I need some help here.

Just out of curiosity since X6 has always been my favorite X game in the series since I first played it way back when. Even as a child it never bothered me that the game was hard, I just found it to be the natural order of things since Megaman was all ♥♥♥...

how many endings are there to x5 ive gotten two different endings and still havent gotten the achievement

Or at the very least: Faster?