Rescue
Riku didn't know these people, and he had only been there for a couple of days, so he only knew the basics of the situation. But fighting these sorts of fights was in his nature these days. Plus, what better way to show that he was good at this sort of thing than joining in?
Call him cocky, but he knew he was good. Calling forth his keyblade, it didn't take him long after entering the room to realize that the minions were going to be a breeze. He'd fought much worse than these in the past, after all. Moving quickly, faster than normal humans, he easily took down one minion before throwing a quick Dark Shield up behind Andrea when he saw a minion coming up behind her. He might not know her well, but at least he knew her name. That was more than he could say about most of these people.