Side O fully charged, Triangle, Down O (blue), Down square, Down triangle, Down square, jump, Square x3 is 150 (no wall)
You can also replace triangle and down o with down o green and aerial over square for the same amount of AP
You can up-square loop on an invisible wall until the burst (see: Dojo)
A wall-bounce can combo into up-square, square x3, maaaaybe side o (all aerial), and Level 2, but I haven't gotten the side o to work.
If you happen to have bananas placed on the ground, they won't stop your combo; infact, they'll just add more AP to it.
I also made a 75 AP into Level 1 combo on the new community combo video whenever it releases.