User blog comment:Pigzillion/How the hell did Hisoka do that!?/@comment-5780397-20150426093412

Some of those tricks do not appear in the manga nor the 1999 anime, such as when that guy's arms seem to fade away and he turns to mist when Gon attacks him. It's a Manipulation ability called "Censure" (Chensuru). Besides, it is not impossible that Hisoka really knows some magic tricks.