you cant, he is unfinished and isnt added as a character offically(tho he does have a normal mode sound) no offical way and no horror design nor sound so the only way to get him is decompiling and i can give the sb3 if ya want!
matiaselias11-cell as of my latest version, it doesnt unless you can give us a file to so prove this then it is unfinished also yw SUSHI GUY