try hanging it up side down, or painting it black so u can not so the cut parts.

Now this is even mentioned in the game that click the nails or the metal sticks to return them

stick the ropes on all sides and then cut the body parts

tir ropes around so tight that it will cut the body parts by itself. may take a few tries

sometimes if u cut one part of the body with the chainsaw then the other parts might also get some cuts on them (bringing blood)

just cut him what ever way you want