Wow, I actually never knew about any of these, haha, they're awesome.  I gotta try 'em now.

In the past almost all of the mega man games had glitches.

Most of the glitches you would have to look for, but some like in mm4 not being able to teleport after beating the final level thats a problem.

Now with MMX its much harder to see any glitches. Thats likely because of the up to date software, or the fact the devolopement team is alot bigger.

he said rare not impossible.

I don't think it's actually any rarer, personally.  Capcom has pretty solid quality control, even on the NES.  Saying glitches are rarer in the X series makes you think either that there aren't any in the X games (which is blatantly false as I can name glitches in each title off the top of my head) or that there were a lot in the NES days (and there were a few, but not significantly more than in the X series).

Anyway, this tangent is silly.  Lets get back to posting glitch videos!

X1 cutscene skip (watch from about 2 minutes):

X2 naked arm part collection:

X2 cutscene skip & invincibility during final boss:

X2 space jump:

X8 space jump:

I couldn't find a good Youtube video of dash-cancel quick saber, or quick crouch, or ramp jumping, or or or (you get the point?).

9 of course has some glitches of its own.

Avoid cutscenes by not touching the floor:

Galaxyman goes on vacation:

DLC re-downloading glitch:

Through the wall, kill a boss in one hit, die after a boss, and use Beat during Time Attack mode, four in one special!