Okay... then forget about my opponent displaying any of mugen's random "victory quotes" -- doesn't sound like its possible.
Instead of that, what about displaying a special screen after you lose to your opopnent?
I've seen this before -- I downloaded a character 00naro (nakoruru)
When you lose to her -- It will display a special character screen after the fight -- it has her face and says somethign like "To be continued"
Anyone know how to do that? Because I figure if I could use a screen like that, I could just put in the victory quote that way as a workaround