[... well, that sure is a weirdly specific question. Yusuke doesn't sound particularly perturbed when he answers it, though; if anything, he's more intrigued than he is unsettled.]

The first one. I've never died here before [surprisingly] but from what people've told me, you just black out for a while and then wake up at a Pokemon Center later if you screw up and manage to bite it. I guess you could say we've got unlimited lives.