thank you very much , even i don't know much about this character history and background and that's part of his mystery , his arms are maybe prosthetic extentions to his body that makes him like a spider , the things in his hands have many uses , like walking over thin surfaces , making less noise , walks faster with them in all his arms like a spider rather than just using his two legs, and he used them as a weapon to stab while he grab his victims with his top arms