The Mega Man Killers return in some DLC stages.After his last appearance in Mega Man V, Tango returns in Auto's shop if the player is Proto Man.Bass comes back to this game after his absence in Mega Man 9.Originally, only Mega Man is available in the special modes, but Mega Man Legacy Collection 2 allows Proto Man and Bass to also fight them. Not only that, but if you defeat them, Mega Man can use their weapons in the main game.