how come funkiiU doesn't require any nus keys? does it extrapolate the key from the key site or r online keys like the common key in that it's a backdoor? also, do digital and retail disc games use the same dlc? I couldn't find any differentiation between the two on the title id site. all of my games r digital, so I wasn't sure. also, when u download the dlc for a game, is all of it installed? what about games like super smash bros. with multiple dlc items? all of it is download/installed? thanks!