mutilated himself before the  kids (Hence Mimi covering her eyes). However, he regenerated with  green bloodstains on him still. Despite his treatment in the dub,  Apocalymon was more disturbed with a sense of vigilante justice for  his pain. He also referred to himself as "We", likely as he had no  one to talk too in the void and that he was created from the data of  Digimon who were wipeout for being unable to evolve and exist in the  next age of the Digital World (episode 1.53 "Now Apocalymon Part  1").