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Unstable Bridge (アンステーブルブリッジ) is a Second Stage obstacle that was added in SASUKE 23, replacing the Swing Ladder as the fourth obstacle. It became the third obstacle in SASUKE 24, with the Stick Slider's removal.

The obstacle featured two wooden planks to swing from. Both planks were 60cm (2ft) in width and 1.8m (5.91ft) in length. The first one was hung by four metal chains, held by one in each corner. The second plank was hung by only two metal chains, each down the center of the plank, one at each end. This would force the plank to easily tilt to either the left or right side if the competitor either did not transfer from the first plank correctly, or if they lost their balance while maneuvering across to the other end.

Similar to Delta Bridge, the competitors must hold onto to both sides while crossing. While crossing the first plank, competitors must use momentum to reach the second plank. On the second plank, competitors must reach the other side while keeping both ends even.

This obstacle was much harder than Swing Ladder. Although the obstacle can be beaten by those who take their time on it, like many other Second Stage obstacles, the timer forces people to rush through, causing many failures. In its first tournament, it eliminated American qualifiers Richard King (who failed the transition to the second plank) and Brian Orosco (who failed trying to reach for the ending platform) and SASUKE 22 finalist Urushihara Yuuji (who lost his balance when reaching the other side). In SASUKE 24, it eliminated Kawaguchi Tomohiro, and Sato Jun in SASUKE 25.

From SASUKE 24 to SASUKE 27, Unstable Bridge was the third obstacle, replacing the Stick Slider and immediately following Salmon Ladder or Double Salmon Ladder from SASUKE 25 to SASUKE 27. The obstacle's previous position as the fourth obstacle was taken by the revamped Balance Tank.

Then, from SASUKE 28 to SASUKE 30, the obstacle was placed after Swap Salmon Ladder, but the second board was taken out, and only the four-chained board remained. This version was much easier, as no competitors failed or even showed signs of struggling. It was removed in SASUKE 31, as it was replaced in favor of Salmon Ladder Kudari.

Other Appearances[]

American Ninja Warrior[]

ANW3 Unstable Bridge

American Ninja Warrior 3's Unstable Bridge

Unstable Bridge appeared in American Ninja Warrior 3 as the eighth obstacle during semifinal, immediately following the Salmon Ladder. However, this obstacle was much more brutal than in SASUKE, as only Ryan Stratis could complete it, likely due to the fatigue from the other competitors, setting a record with the highest knockout rate of any obstacle in American Ninja Warrior history, taking out 13 out of 14 competitors who attempted it, a 92.86% knockout rate, which stood for years before being beaten by Angry Birds which had a 100% knockout rate in American Ninja Warrior 11. This unexpected high number of falls was likely due to fatigue, windy weather condition that made the second plank constantly swing, and the planks being held by bungee cords instead of chains.

ANW4 Unstable Bridge

American Ninja Warrior 4's Unstable Bridge in Stage Two

ANW7 Unstable Bridge

American Ninja Warrior 7's Unstable Bridge in Stage Two

Later, Unstable Bridge appeared as the third obstacle in Stage Two from American Ninja Warrior 4 to American Ninja Warrior 7, after Double Salmon Ladder, with the distance between two planks was 1.5 feet/45.72 centimeters apart (2 feet in American Ninja Warrior 6). Several top competitors had been eliminated from this obstacle, including Paul Kasemir, Brian Arnold, Noah Kaufman, and Drew Drechsel twice.

From American Ninja Warrior 4 to American Ninja Warrior 6, the obstacle immediately followed Double Salmon Ladder with no rest, while in American Ninja Warrior 7, there was a resting bar placed after Double Salmon Ladder, which gave competitors the chance to rest before attempting the obstacle.

In American Ninja Warrior 8, the obstacle was replaced by Wave Runner, which was a combination of Unstable Bridge and Hourglass Drop.

Ninja Warrior Sweden[]

NWS Unstable Bridge

Ninja Warrior Sweden's Unstable Bridge

On Ninja Warrior Sweden, the Unstable Bridge appeared as the eighth obstacle in the Finals' Stage One, immediately following the Salmon Ladder. Out of 14 attempts, 11 competitors were eliminated by this obstacle.

NWS2 Unstable Bridge

Ninja Warrior Sweden 2's Unstable Bridge

Then, on Ninja Warrior Sweden 2, the Unstable Bridge moved as the third obstacle in the Timed Section of the Finals' Stage Two. Out of five attempts, only one ninja failed it this time.

Ninja Warrior UK[]

NWUK Unstable Bridge

Ninja Warrior UK's Unstable Bridge

The Unstable Bridge appeared as the third obstacle during the finals' Stage 2 on Ninja Warrior UK and Ninja Warrior UK 2, immediately following the Salmon Ladder.

In the first season, out of four attempts, only Timothy Shieff completed this obstacle and later ran out of time on the Wall Lift. In the second season, Owen McKenzie failed to make the transition from the Salmon Ladder to the first board.

Ninja Warrior France[]

Nwf1 unstable bridge

Ninja Warrior France 1's Unstable Bridge

In Ninja Warrior France 1, Unstable Bridge appeared as the fourth obstacle of Stage 2. Directly following the Salmon Ladder with no rest. The first board had 4 chains while the second had 2, and it reused the same design as the ANW7 version.

SASUKE Vietnam[]

Ảnh chụp màn hình (48)

SASUKE Vietnam 2's Salmon Ladder and Unstable Bridge

From SASUKE Vietnam 1 to SASUKE Vietnam 3, Unstable Bridge, locally called Cầu Treo, appeared in Stage 2, immediately following Salmon Ladder. In SASUKE Vietnam 1, it was the third obstacle in Stage 2. From SASUKE Vietnam 2 to SASUKE Vietnam 3, it was moved to the fifth obstacle in Stage 2.

In its first two seasons, there was only one plank supported by four chains at the corners of the plank, two at each end, making it similar to Unstable Bridge from SASUKE 28 to SASUKE 30. Despite the obstacle being very easy in SASUKE, it eliminated Võ Trường Giang in SASUKE Vietnam 1 due to losing his grip at the start of the plank. In SASUKE Vietnam 2, a unique disqualification occurred for Nguyễn Văn Hiếu and Trần Vương Bảo, as both were touching the Salmon Ladder's support structure when traversing Unstable Bridge.

Ảnh chụp màn hình (55)

SASUKE Vietnam 3's Unstable Bridge

In SASUKE Vietnam 3, the number of planks was increased to two, with the second plank supported by just two chains at the center of the plank, one at each end, making it similar to Unstable Bridge used from SASUKE 24 to SASUKE 27. This made the obstacle harder, as many competitors failed at the transition to the second plank.

In SASUKE Vietnam 4, the obstacle was replaced by Rope Swing, and both Salmon Ladder and Rope Swing were combined and counted as one obstacle; the obstacle was named Salmon Ladder with Rope, called locally Thang Cá Hồi - Đu Dây.

SASUKE Ninja Warrior Indonesia[]

SNWI Unstable Bridge

SASUKE Ninja Warrior Indonesia's Unstable Bridge in Semifinal Stage 1

In SASUKE Ninja Warrior Indonesia, Unstable Bridge appeared as the fifth obstacle in Semifinal Stage 1. It was not preceded by any obstacle with no rest, similar to SASUKE 23 version of Unstable Bridge. However, this obstacle was brutal, as most of the competitors who attempted it failed to complete it, with most of them failing to make the transition to the second plank.

Australian Ninja Warrior[]

-38- Unstable Bridge

Australian Ninja Warrior's Unstable Bridge

In Australian Ninja Warrior, Unstable Bridge appeared as the fourth obstacle in Stage Two, immediately following Salmon Ladder. However, unlike in SASUKE and American Ninja Warrior, the obstacle featured two planks, with each plank supported by just two chains at the center of the plank, one at each end. This modification made the obstacle extremely brutal, as all two competitors attempted it were failed, leaving the Wall Lift unattempted.

AusNW2 Unstable Bridge

Australian Ninja Warrior 2's Unstable Bridge

Then, in Australian Ninja Warrior 2, Unstable Bridge was the seventh obstacle in Stage Two, also immediately following Salmon Ladder. This time, to make the obstacle easier, the first board was supported by four chains, while the second board was supported by three chains, two at one end and one at the other end. Despite that, all three competitors who attempted it failed, leaving the Wall Lift unattempted once again.

Aus4 salmon ladder to unstable bridge

Australian Ninja Warrior 4's Salmon Ladder to Unstable Bridge

Aunw5 unstable bridge

Australian Ninja Warrior 5's Unstable Bridge

In Australian Ninja Warrior 3, Unstable Bridge was the third obstacle in Stage Two. This time, both planks were supported by four chains, and there was a resting bar placed before the first plank, similar to the obstacle used in American Ninja Warrior 7. These changes were extremely significant, as only Ryan Solomon failed, while 7 were able to complete it. The obstacle was also combined with Salmon Ladder as one full obstacle. Therefore, the obstacle was named Salmon Ladder to Unstable Bridge. This version would eventually return in Australian Ninja Warrior 4, once again as the third obstacle in Stage Two. This would also return in Australian Ninja Warrior 5 as the second obstacle in Stage Two.

With this modification, a unique method of attempting the obstacle was introduced, as competitors would hold only one side of the board in a similar fashion to the Cliffhanger, which is due to the fact that the boards are on four chains, making it stable for competitors to hold onto just one side.

Ninja Warrior Poland[]

NWP Unstable Bridge 2

Ninja Warrior Poland's Unstable Bridge

In Ninja Warrior Poland, the Ruchome Kładki (literally Moving Footbridges, Ninja Warrior Poland's official name for the Unstable Bridge) appeared in the final as the fourth obstacle in the first part of Stage Two, immediately following the Salmon Ladder. During this season, only Michał Baryza fell, on the transition between the two boards.

NWP7 Unstable Bridge

Ninja Warrior Poland 7's Unstable Bridge

It would appear again in Ninja Warrior Poland 7 as the fourth obstacle of Stage 2. Immediately after the Salmon Ladder and then a resting bar, it consisted of one 2.5-meter (8.2-foot) plank attached on four chains, similar to the Unstable Bridge from SASUKE 28 to SASUKE 30. With this version, the dismount to the landing platform was now significantly more distant compared to the one used in SASUKE. Despite this, only three out of 10 competitors failed on this obstacle.

Ninja Warrior Germany[]

NWG-Finals Qualification 1-Obstacle-Unstable Bridge

Ninja Warrior Germany 1's Unstable Bridge (Hängebrücke) in Semifinals

In Ninja Warrior Germany 1, the Unstable Bridge, locally called Hängebrücke (literally Hanging bridge), appeared as the fourth and penultimate obstacle in the first Finals Qualification. This time, the obstacle was almost placed directly after the Salmon Ladder, with only a laché bar separating them, and it appeared to be similar to the Unstable Bridge used from SASUKE 28 to SASUKE 30. However, the plank was twice as long and was suspended from eight chains, instead of four chains, making it radically different.

Despite the above-mentioned modification, a majority of the of the competitors who attempted the obstacle cleared it, with only five out of the 13 competitors who attempted this obstacle failing it.

Nwgr1 unstable bridge

Ninja Warrior Germany 1 Finals' Unstable Bridge

The SASUKE 24-27 version of the Unstable Bridge appeared as the fourth obstacle in the finals' Stage 2. It shared the same design as the ANW7, and directly followed the Salmon Ladder with no rest.

NWG 2-Second Stage-Obstacle-Unstable Bridge

Ninja Warrior Germany 2's Unstable Bridge (Hängebrücke) in the Second Stage

In Ninja Warrior Germany 2, that exact version of the Unstable Bridge reappeared as the fourth and penultimate obstacle in the Second Stage. This time, the obstacle was placed directly after the Double Salmon Ladder, without any element separating them.

This time, four competitors in total attempted the obstacle and out of these competitors, only Viktor Brüsewitz failed it. Moritz Hans (the first person to clear this obstacle in Ninja Warrior Germany) on the other hand, cleared this obstacle using an unconventional technique, as he fully transitioned to the second board by grabbing the backside of the board first, instead of holding onto to both sides.

Ninja Warrior Denmark[]

Nwdk unstable bridge

Ninja Warrior Denmark's Unstable Bridge

On Ninja Warrior Denmark, Unstable Bridge appeared as the third obstacle of Stage 2, directly following the Salmon Ladder without break. There were two boards in total, the first one with a chain on each of all four corners, the second had three chains only.

Ninja Warrior Austria[]

Nwat1 unstable bridge

Ninja Warrior Austria 1's Unstable Bridge

On Ninja Warrior Austria 1, Unstable Bridge appeared as the fourth obstacle of Stage 2, directly succeeding the Salmon Ladder. It was identical to the ANW7 version, but without the lache bar at the start.

Ninja Warrior Arabia[]

Unstablebridge nwa

Ninja Warrior Arabia's Unstable Bridge

On Ninja Warrior Arabia, Unstable Bridge appeared as the fourth obstacle of Stage 2. The obstacle was identical to the Unstable Bridge iterations from SASUKE 28 to SASUKE 30. Competitors must first reach a lache bar before transitioning to this obstacle.

Ninja Israel[]

NWI Unstable Bridge

Ninja Israel's Unstable Bridge

In Ninja Warrior Israel, the Unstable Bridge, locally called לוחות העץ (literally Wooden Boards) appeared as the penultimate obstacle during the Finals' Stage Two immediately following the Salmon Ladder. Similar to the one used in Australian Ninja Warrior 2, the first plank was supported by four chains, while the second plank was supported by three chains, two at one end and one at the other end. However, while the obstacle become the cut-off to the Stage Three in Australian Ninja Warrior 2, it was very easy in Ninja Israel (possibly due to low number of obstacles in the Second Stage), as no competitor failed on it.

NWI2 Unstable Bridge

Ninja Israel 2's Unstable Bridge

Then, in Ninja Warrior Israel 2, the Unstable Bridge, this time locally called הלוחות המרחפים (literally Floating Boards) appeared as the fourth obstacle in Heat 14 with major modifications compared to the one used in the previous season. The obstacle featured an inclined pole as a means to reach the first plank and a horizontal pole (similar to the pole in Parallel Pipes) at the end of obstacle. Compared to all other versions, both planks were supported by just two chains at the center of the plank, one at each end (similar to Australian Ninja Warrior's version), but the first plank was angled downward, and the second plank was angled upward. This modification made the obstacle incredibly difficult, as most competitors either struggled when trying to reach the first plank or failed at the transition to the second plank. As a result, the obstacle eliminated 16 out of 18 competitors who attempted it.

NWI5 Unstable Bridge

Ninja Israel 5's Hang Climbing to Unstable Bridge

In Ninja Warrior Israel 5, the Unstable Bridge appeared as the penultimate obstacle during the semi-finals immediately following the Hang Climbing. Similar to the one used from Australian Ninja Warrior 3 to Australian Ninja Warrior 5, both planks were supported by four chains, and there was a resting bar placed before the first plank. Although this modification made the obstacle very easy, it still eliminated two out of nine competitors who attempted it, including Sapir Cohen Carmi in Semifinal 2 and Dor Azran in Semifinal 4.

Ninja Warrior Switzerland[]

NWS Unstable

Ninja Warrior Switzerland's Unstable Bridge

On Ninja Warrior Switzerland, the Unstable Bridge appeared as the third obstacle in the Untimed Section of the Finals' Stage 2, immediately following the Salmon Ladder. The first plank was supported by three chains, and the second plank was supported by two chains.

Competitors' Success Rate[]

  • All results based on the TBS/NBC/Polsat/RTL/Keshet 12 broadcast and external information found.

SASUKE[]

SASUKE Clears Attempts Percentage
23 8 11 72.72%
24 10 11 90.92%
25 7 8 87.5%
26 8 8 100%
27 16 16 100%
28 4 4 100%
29 17 17 100%
30 17 17 100%
Total 87 92 94.57%

American Ninja Warrior[]

ANW Clears Attempts Percentage
ANW3 (Semifinals) 1 14 7.14%
ANW4 7 13 53.84%
ANW5 8 11 72.72%
ANW6 9 14 64.28%
ANW7 20 30 66.67%
USA vs. Japan 3 3 100%
USA vs. The World 6 6 100%
USA vs. The World 2 5 7 71.42%
Total 56 98 57.14%

Ninja Warrior Poland[]

NWP Clears Attempts Percentage
NWP1 2 3 66.67%
NWP7 7 10 70%
Total 9 13 69.23%

Ninja Warrior Germany[]

NWG Stage Clears Attempts Percentage
NWG1 Finals Qualification 1 8 13 61.53%
Second Stage 0 1 0%
NWG2 3 4 75%
Total 11 18 61.11%

Ninja Israel[]

NWI Clears Attempts Percentage
NWI1 4 4 100%
NWI2 2 18 11.11%
NWI5 (Semifinal 2) 3 4 75%
NWI5 (Semifinal 4) 4 5 80%
Total 13 31 41.94%
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