In order to advance, competitors had to jump and grab onto a padded wall that spun around a central vertical axis to reach the platform on the other side. Only six competitors failed on this obstacle in its two tournaments span, and was removed in the next tournament.
American Ninja Warrior Appearances
The Butterfly Wall appeared as the fourth obstacle in Stage Two from American Ninja Warrior 6 to American Ninja Warrior 8, replacing the Balance Tank from the past two American Ninja Warrior seasons. However, there were several differences between the Butterfly Wall used on American Ninja Warrior, compared to the one used in SASUKE:
- The rotating wall was shaped more like butterfly wings with rounded corners and inclined ledges.
- The wall was situated much higher up in relation to the starting platform, requiring a more accelerated and higher jump.
- Competitors must time their release from the wall to grab a rope, then climbed it up (in a similar fashion with the Rope Climb), and finally dropped down to the landing platform.
It took out any competitor who was shorter than average, or had a bad run-up. On American Ninja Warrior 6, only two competitors failed on this obstacle (Yen Chen and Josh Cook). During USA vs. The World, Morimoto Yūsuke failed on this obstacle due to his shorter height, as he could not reach the top of the wall.
On American Ninja Warrior 8, the distance between the starting platform and the wall was made bigger than on American Ninja Warrior 6 and American Ninja Warrior 7. Therefore, a trampoline was added to the starting platform. Despite that change, no competitor failed on this obstacle once again.
SASUKE Ninja Warrior Indonesia
On SASUKE Ninja Warrior Indonesia 2017, the Butterfly Wall appeared as the fourth and final obstacle during Warrior Stage, which was very similar to the obstacle used on American Ninja Warrior.
Australian Ninja Warrior
On Australian Ninja Warrior 3, the Butterfly Wall appeared as the second obstacle in Heat 2, Heat 4, and Heat 5, which was very similar to the obstacle used on American Ninja Warrior 8 (since a trampoline was added to the starting platform).
However, the obstacle became significantly more brutal than the one used in SASUKE and American Ninja Warrior, as most of the competitors who failed on it either failed to grab the wall after bouncing from the trampoline or failed to grab the rope. In Heat 2, only 16 competitors could complete the obstacle. With the top 18 competitors from each heat would advance to the semifinals on that season, the Butterfly Wall became the cut-off for the competitors in Heat 2 to advance to the semifinals.
Competitor's Success Rate
- All results based on the TBS/NBC broadcast and external information found
American Ninja Warrior
|USA vs. The World||5||6||83.33%|
|USA vs. The World 2||5||5||100%|
|USA vs. The World 3||5||5||100%|