now the black demons are tough and do a shadow attack which if your close to them it will suck you to them and they target you now. also once in a while they make a ball with white balls flowing into it. if you get sucked into the ball it teleports you to another town/place. they give you the black vorpal weapon as rewards for killing it like the white ones. but now they are fast and target you quickly. Looks like the beginning of the end. oh and a few times one will open a riff for 4 blacks and 1 white to come.