After the wall combo (...d/b+2,2,2,2,2), duck with Yoshi and just SEE what your opponent does. If your opponent quickrolls, you have old as Earth tech trap, which is: Sword Sweep (FC,D/F+1).
If he stays on the ground, you do FC,d+4 (hits), and then WS+1 or d/b+1 into re-splat, and again: f+2~D/B+2,2,2,2,2, which resets the whole situation. But don't worry, after the whole thing your opponent is nearly dead...
There are a couple of questions that will be solved after DR Online with practice will be released in the US.
1. How come WS+1 or d/b+1 causes re-splat after FC,d+4? Is this because the opponent wants to stand up or maybe FC,d+4 slightly pops your opponent up and so d/b+1 or WS+1 hits into another wall splat?
2. Is it possible to reset the okizeme situation after Sword Sweep? What to do to align Yoshimitsu well?
Yeah, this article will be updated. By now, take a look at these matches of APO: