I remembered watching Sasuke 8 many years back. In my opinion, this tournament is one of the best to never have a kanzenseiha, starting with the Warped Wall/Soritatsu Kabe being so difficult that only 10 people managed to clear it due to Typhoon Nari causing the entire course to be wet and slippery. When it came to the final stage, it isn't clear if he could have done it but many said that had it not been for the heavy rains that day, Kane Kosugi might have achieved his Kanzenseiha