Pretty much anything, because almost everything he does has gaps in it. You can also turn a move into a frame trap by canceling into a special usually, or delaying the next move.
Generally stuff like 2A > 2B or 2B > 2A will work, or 6A > 2B.
The key is to have things that won't leave you vulnerable afterwards. For instance, all your As and Bs are pretty safe, so you can do that without worrying about getting punished. All of your C moves can be canceled into a special to cover your back too, except 3C. (And with C moves you leave yourself wide open if you don't cancel into another move.)