This post might be moved to another spot.
this is what i know so far, because while moddifying it i did not want to mess with existing stuff that worked....
specials for the 3 main characters are
attack plus jump
Jump plus special
up down special
F F attack
down fw attack
"grab" enemy & punch
grab enemy plus forward
grab enemy plus backward
grab enemy + up & jump
grab enemy & jump
grab enemy down plus jump
jump +down attack
jump + attack
jump + up attack
FF jump equal slide (at least w Chris)
there is a lot more things that the main characters can do that Bonus JZ implemented, but that i did not discovwer or bothered to learn.....
As for Ash , he is indeed a bit limited, but powerful
iron fist= jump and attack pressed together
shotgun= down, forward then attack
fire summon= down, down then attack