Well, I've got a (soft-)modded XBox, and after pulling the files off my SFAC disk for HSF2, I decided to have a peek at the XBE (I'd previously hex-edited the HSF2 XBE, as well as SF3's, to give them more 'proper' names), and I noticed a win quote, as well as an ending text, that I didn't recognize before, and they're almost certain to belong to Akuma:
QUOTE
My fists will show you the depths of your weakness!
QUOTE
"Who... or what... are you?"
"I am your shadow. Death comes to those who find this shadow cast upon them."
"Hmpf! No shadow can harm the master of darkness himself! I do not fear death. I laugh in its face."
Gouki [sic] disappears into darkness, leaving mysteries behind.
"Evil empire? Don't make me laugh. the strongest always win. It's a foregone conclusion."
Now, how would I reactivate these 'missing' lines of dialogue from the game? If anyone knows, it would be appreciated.