More speculation!
Mystery Character
Action: 148 - 14A
Subaction: 233 - 23A
Info: They have 'Start', 'Hold', 'Light' and 'Heavy' commands. Who could this be?
I think this is Charizard. He has animations for starting it and holding it, and the light could be used for the weakening which occurs if you hold it for too long.
It could also be bowser or rob, but I don't think rob would have a hold command