Re posted from pimp's advanced guide:
Wall Combos (Thanks to Persona's combo video and ZeroEffect)
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Jump Punch > Back+1,4 > 2,3,4 > 2,3,4, Roll >*dash under* > uppercut. 41%
Jump Punch > Back+1,4 > 2,3,4 > 2,3,4, Roll >*dash under* > 4, Neckbite. 41%
(This combo leaves them standing in the corner. no wakeup.)
Up+4. Up+4 > 2,3,4 > 2,3,4, Roll >*dash under* > (4, Neckbite/Uppercut) 35% and 34% respectively.
Up+4 > Back+1,4 > 2,3,4, Roll >*dash under* > (4, Neckbite/Uppercut) does 33% and 32% respectively.
Back+3, Roll >*dash under* > 2,3,4 > 3,4, Neckbite. 27%
Gives them something to think about if they're looking for Up+4
There's other good stuff in there as well if you need any more combo info.