So when Naruto was training to control the 9 tails, killer b took him to those statues where he said that if there was darkness in Naruto's heart, they would cut his head. When Naruto came out he said there was a switch inside and bee said "the statues were only there to scare him"
So were the statues legit? Did they really did the darkness detection, head cutting stuff? Could it be that they didn't detect any darkness in Naruto and let him pull the switch?
Or were they just meant as a horrible prank?