A lot of the requests are pretty old. What are the rules regarding necroposting?
Looks like you found it too?
Not sure where you're searching, but I see "Try Demo" links at:
Skullgirls (only one, though)
Street Fighter III: Online Edition
Virtua Fighter 5...
Looks like the trial version is currently listed (at least in the US); just not the full game. Still good to have it backed up, of course.
Couldn't you just buy it?
Separate names with a comma.