Talk:Ur-Dragon/@comment-67.174.106.194-20120708014330/@comment-96.39.238.57-20120708043552

Yes, you can leave and come back later, if you're playing Online Ur-Dragon, other players will obviously be taking it's health down whether you're there or not. Since you only want the Heaven's Key it would probably better to turn your connectivity settings to offline and fight the offline version, as he'll die pretty fast and you can also fight him over and over.