ALL ABOARD THE DRAMA LLAMA.
Okay, pick C-Roa; when he does random shit in the air or things with recovery far away from you rape him with a QCF+C. Then after the wall slam use QCB+ any of A,B,or C to drop down some orbs; use the orbs to zone him out. If he blocks your regular attacks just chain your normals into QCF+A, QCB+A really fast so that the QCB+A cancels the QCF's recovery; then use the orb to pressure him.
That's seriously the most braindead Roa stuff I can come up with, so there ya go.