uhm
if i may
if you get caught with your opponent at high percentages and can't finish a side-b anymore, I suggest just grab-gaming them and grab-attacking them to about 180% or 190% (depending on your opponent's character, some much less than that) and then just up-throw as a killing blow
edge-guarding, there's his flare blade, which is nice only if you can space it well; how I space it is I imagine Roy's height standing up as the side of a square, and try to get that same amount of distance between you and where the opponent can grab the edge while recovering, then just let go of b at the right time
what this does is that you can charge the flare blade to a really powerful (not to mention intimidating) attack that's easy to time, with decent range, and proper spacing allows you to hit them at just the final hit-box, while staying out of range from any up-b's hitting and interrupting you
edgeguarding still - if you do that same spacing technique with the flare blade, do the same thing with the forward smash, but instead of facing the edge, face AWAY fromt he edge at that same point and then fsmash the opponent at the right time.
what this does is, when Roy is in a stance position, he leans forward, that leaning forward protects you even better than just the initial spacing, this way literally no up-b is able to hit you. At the same time, when you fsmash from this position, you're hitting just about at Roy's sweet-spot
figuring opponent's mind games -
what I usually do is just dash dance so they at least have something to keep track of and maybe throw them off a bit (don't count on it though) and then soon as they get a little too close, even if they're shielding, just try to do the first attack of side-b (tipper) - if it hits, see if you can do something with the next 2 or 3 hits of side-b - if not, then the tipper-range spacing will keep you from getting too badly punished, and you should be able to just keep moving
I don't know much what else to say at the moment but I spoke my mind
I'll probably be back with more on this regarding u-air shffl, and mimicking Marth's f-air combo
shouldn't really need much explaining...but I'll be back later
there's a melee fest at campus I'm wanted at