Could the Mods add a Glitchless Category? I think it would be more fair for people who cant do the Glitches.

Glitches aren't a necessity. Just do a run without glitches and submit it.

A glitchless category would be a nice idea I agree.

Edit: actually, how about a "no 2nd player" category? Would be interesting while still allowing minor glitches

What about a every missions run?

Isn't All Missions basically 100% though? Unless you mean All Story Missions (or whatever they're called in-game) That's something I can get behind a lot more than just a plain "any% glitchless" deal.

i think there should be a no 2nd player category, seems werid to not to :p