At first he thinks Gunvolt's been injured, but as he reaches him, he can see that's not the case - physically, anyway. There's no blood or anything, at least that he can see. The fact that the Dart Leader had been pointed at him a few seconds ago doesn't even seem to register as he promptly wraps his arms around his friend.

A barrier made of Radiant light springs forth around them, repelling enemies for the moment.

"...Are you okay?"

It's the only thing Vivi can think to ask, in the face of everything. It might be a battle for the fate of the world, but this is way more important right now.