In most action games, there is a story mode and a 'multiplayer' mode. That's where you can have two people fight who haven't met or have no reason to fight or even to reenact a previous battle. Like, say, John vs. Jack, Rena vs. Nera, or Yukari vs. Gluttoneriel.
Yea, it would be like an actual battle, it just wouldn't affect the actual story line. Know what? I may just make an arena thread where this kind of thing happens, maybe even with different characters from different rp's...
Yea, I wish. I probably wouldn't get past the Ibuki sensors.