yeah thats it underworld drop in the movelist, it says you can use it with the single katana
#4gumxPosted 6/15/2014 10:57:56 PM
yeah so u can only do it in story mode. thats it. but i think either day 5 or 8 you will be able to use that red electric sword as a single katana. then u will be able to do it. but, its weaker than the izuna drop. so theres really no point in using it. the dual swords can do it once you get it.