Morimoto Yūsuke (森本 裕介) is an IDEC software engineer who began competing on SASUKE when he was just 15. He became the fourth and youngest grand champion, achieving Kanzenseiha in SASUKE 31 at the age of 23.

He made his debut in SASUKE 18 where he performed well in the race, beating competitors such as Nagano Makoto and getting a very high number, #91. During the competition, he was fast. Although he got caught on the Pole Maze, he was able to pass it in good time. When he got to the Jumping Spider, he hit the trampoline correctly, but failed to get his legs up to the walls.

He returned in SASUKE 19, wearing #71. Wearing all black (resembling Nagano Makoto), he made it to the Pole Maze but lost a lot of time there as the pole got stuck. He eventually got out with little time left and was able to take his revenge on the Jumping Spider although that day it was much harder. He made it to the new Half-Pipe Attack but lost his footing and missed the rope.

He has competed in SASUKE 21 and again failed the Jumping Spider. In SASUKE 22, he was unable to scale the Soritatsu Kabe and timed out on the obstacle. He was cut from both broadcasts. However, in an interview with Morimoto, his results were revealed.

At the age of 19, Morimoto returned to SASUKE for the 27th competition. Although he was digested, he finally cleared the First Stage as many did for their first time that day. In the Second Stage, Morimoto would fail the Metal Spin.

In SASUKE 29 he had number #79. He cleared the First Stage for the second straight time, with 9.69 seconds left. Morimoto then broke the streak of 10 straight Second Stage failures before him by barely clearing the stage with just 0.81 seconds remaining. His clear would not be possible if he lifted the third wall of the Passing Wall, as he only slipped under the third wall (due to the one foot gap placed under the wall) without lifting it, albeit was allowed to advance. The Third Stage was timed to clarify the competitor, if any, that cleared the stage in the fastest time. He struggled for over a minute on the Iron Paddler. However, because of the timer, he was allowed to rest for as long as he wanted, unlike in other competitions where a competitor can only rest for 30 seconds. After resting for over 5 minutes, he became the first person to beat the Crazy Cliffhanger. He cleared the next two obstacles, the Curtain Cling and the Vertical Limit with ease. However, on the Pipe Slider, he almost cleared but his foot slipped and fell down in the water.

He went the farthest in the tournament, which has led to him being selected as Japan's representative in SASUKE ASEAN Open Cup 2014, which was held in February 2014 in Kuala Lumpur, Malaysia. There, he put on a strong showing for Team Japan and earned a silver medal.

With all this, he was invited back to SASUKE 30 and wore the coveted #3000 (#100 In regular tournaments, the first competitor since SASUKE 18 to wear the number who wasn't a former champion). In SASUKE 30 he cleared the First Stage with 11.16 seconds left on the clock. In the Second Stage Morimoto took the raised time limit too much for granted and as a result timed out on the Wall Lifting.

Morimoto also competed in American Ninja Warrior: USA vs. The World. He first competed in the Second Stage of the first match against Brian Arnold and Stefano Ghisolfi. Morimoto started strong, but due to his height he was unable to catch the Butterfly Wall and failed the match after Brian Arnold cleared the stage. In the Third Stage, Morimoto competed in the Second Match with Joe Moravsky and Stefano Ghisolfi. Morimoto managed to clear the stage and according to sources should've won his match as he finished a few seconds faster than Ghisolfi, however, NBC used cutaways to the crowd to add time to his run that he didn't take, thus making it seem as if he went slower than Ghisolfi.

Morimoto donned the #91 bib for SASUKE 31, the same starting position as the tournament he debuted in. He beat the First Stage with little trouble, clearing with 9.26 seconds left. In the Second Stage, he got revenge on the Wall Lifting and cleared with 19.41 seconds, the fastest time of the day. He put up a strong performance in the Third Stage, clearing the Iron Paddler, which he struggled two years ago, with ease. He cleared the Crazy Cliffhanger a second time, becoming the only man to ever do so. He then struggled with the Vertical Limit Kai, but passed it, and got his revenge on the Pipe Slider, landing with both feet on the landing platform. He made it to the Final Stage for the first time, becoming the only competitor to do so in that tournament. In the Final Stage, Morimoto showed great speed. He finished the Spider Climb at a great pace, reaching the Tsuna Nobori with around 20 seconds left. He climbed with a blistering speed but ended up having to push his body to reach the final button. This did not cause him any trouble as he achieved kanzenseiha with 2.59 seconds left, becoming the 4th person in history to enter the honor roll and the first competitor to beat the Final Stage in his first attempt since All-Star Akiyama Kazuhiko sixteen years ago. He did not compete in SASUKE 32 due to college and work.

In a Nico Nico broadcast with Inui, it was confirmed that Morimoto would return for SASUKE 33, where he would wear #100. Morimoto marked his return with a First Stage clear with 6.60 seconds left, even though he was almost eliminated on the Fish Bone, with his foot being inches from the water. Then, he would clear the Second Stage with 16.51 seconds remaining - a time quicker than anybody else. In the Third Stage, with the other competitors already eliminated, Morimoto carried out his attempt as the last man standing. He got past the Drum Hopper Kai, but was unable to beat the Flying Bar as he overshot the bar to the second cradle, and the tournament ended with no Third Stage clears.

He returned in SASUKE 34, once again wearing #100. He would clear the First Stage with 8.24 seconds remaining. Then, he once again cleared the Second Stage with 13.47 seconds left. In the Third Stage, he would clear the now modified Flying Bar and went on to become the second competitor to clear the Ultra Crazy Cliffhanger. Unfortunately, when he attempted the Vertical Limit Kai, he lost his grip halfway through the first section of the obstacle when he ran out of stamina immediately after starting. He did however, for the third time in his career, went further than any other competitors.

In SASUKE 35, even with the course having new modifications, he would eventually return to the Third Stage. Now with a green resting platform added between the Ultra Crazy Cliffhanger and Vertical Limit Kai (called as the Vertical Limit in that tournament), he would became the first person to clear the obstacle and the stage, becoming the first person in SASUKE history to attempt the Final Stage after his own kanzenseiha in SASUKE 31. In the Final Stage, with the Salmon Ladder Jūgo Dan added, he had a lot of trouble in completing the obstacle in a fast time and would eventually timed out 5 meters up the Tsuna Nobori.

Morimoto returned in SASUKE 36, wearing #100 for the fourth straight time. In the tournament, he once again cleared the First Stage, this time with 8.97 seconds left, two seconds quicker than he was in the previous tournament. He also cleared the unchanged Second Stage with 12.83 seconds left. He then went on to face the Third Stage, once again as the final competitor with all others being defeated. During his run, he was flawless, no obstacle even came close to stopping him and once again, Morimoto cleared the third stage. The Final Stage, that he was to attempt in front of a live crowd on New Year's Eve. Morimoto started off strong and cleared the Spider Climb like it was nothing. He was then back onto the Salmon Ladder Jūgo Dan. Despite making a small error shortly after beginning, he recovered and flew up the ladder with strong pace, showing that his training had payed off. However, once he reached the top of the Salmon Ladder, possibly the strong winds caused the rope of the Tsuna Nobori to move out of his reach. Morimoto was left hanging for several precious seconds, before the rope finally came back into his reach. Exhausted by the Salmon Ladder, Yūsuke wasn't able to ascend the rope as fast he had hoped, and as the klaxon starting blaring, his hope was beginning to fade. He kept climbing but ultimately ran out of time 0.5 meters away from victory around 0.5 seconds late, with him being close enough to reach the buzzer from where his run ceased.

He then competed in SASUKE 37, once again wearing #100. He was expected to reach the Final Stage for a third straight time, however, he shocked everyone when he timed out on the Soritatsu Kabe that had caused particular damage that tournament due to the wet weather. This was the first time he failed the Soritatsu Kabe and the First Stage since SASUKE 22, ten years ago.


  • In SASUKE 31, Morimoto wore a white watch on his left wrist while attempting the Final Stage.
  • Morimoto is the youngest person to achieve Kanzenseiha, at the age of 23.
  • Morimoto, Takeda Toshihiro, Takahashi Kenji, Urushihara Yuuji, and Kanno Hitoshi are the only five people who attempted the most Salmon Ladder variations at 5.
    • In addition, Morimoto, Takahashi, Urushihara, and Kanno completed the most Salmon Ladder variations at 5.
    • Out of the five competitors, Morimoto is the only one who attempted and cleared the Salmon Ladder Jūgo Dan, but has never attempted the first version of the Salmon Ladder.
  • Morimoto is one of only three persons, with the other being Kawaguchi Tomohiro and Matachi Ryo, to clear both the Crazy Cliffhanger and Ultra Crazy Cliffhanger.
  • Morimoto is the only person to attempt and clear all versions of Vertical Limit.
  • He is the first person to attempt the Final Stage after his own kanzenseiha.
  • Morimoto, along with Nagano Makoto, Omori Akira, Matachi Ryo, Urushihara Yuuji, and Yamamoto Shingo are the only six competitors to reach the Final Stage more than once.
  • Morimoto, along with Nagano Makoto, Omori Akira, Urushihara Yuuji are the only four competitors to reach the Final Stage more than two times. Morimoto, Nagano and Omori are also the only ones to have reached the Final Stage in consecutive tournaments.
  • Morimoto finished SASUKE 36 as the competitor who went the furthest once again, thus becoming the second competitor to go the furthest three competitions in a row, after Nagano Makoto.
  • He and Nagano Makoto are the only ones to be Last Man Standing 4 times in a row (Nagano, 11-14 and Morimoto, 33-36)
  • Morimoto is the only grand champion to have never had with a prop with him at the start of the First Stage (Urushihara entered showing some of his haruta shoes in SASUKE 22, Nagano in 27 entered with a Japanese flag with messages about the 2011 Tōhoku Earthquake, and Akiyama entered with a string of crabs every time he competed).
  • He has the least amount of Soritatsu Kabe failures for kanzenseiha.
  • Morimoto has worn 100 for the second highest number of times consecutively, at 5, from SASUKE 33-37. This has only been surpassed by Nagano Makoto, who wore the number 6 times, from SASUKE 19-24. Only Yamada Katsumi has additionally worn the number more than one consecutively (however no more than twice).
  • Morimoto very briefly held the record for most (now the second most) consecutive First Stage clears with 8 (SASUKE 27, 29 to 31 and 33 to 36, being absent in SASUKE 28 and 32). This tied him with Nagano Makoto and Takeda Toshihiro (both SASUKE 11 to 18) and the record was beaten by Satō Jun who has a total of 9 (SASUKE 23 to SASUKE 25 and SASUKE 32 to SASUKE 37 with an absence between 25 and 32).

SASUKE Results

SASUKE # Result Notes
18 91 Failed Jumping Spider (First Stage)
19 71 Failed Half Pipe Attack (First Stage)
21 52 Failed Jumping Spider (First Stage) All Cut
22 27 Failed Soritatsu Kabe (First Stage) All Cut. Time Out.
27 84 Failed Metal Spin (Second Stage) Digest.
29 79 Failed Pipe Slider (Third Stage) Failed Jump.
30 3000 Failed Wall Lifting (Second Stage) Time Out. Third Wall.
31 91 Kanzenseiha 2.59 seconds left. Last Man Standing
33 100 Failed Flying Bar (Third Stage) Misjudged the distance of transition from first to second rung. Last Man Standing.
34 100 Failed Vertical Limit Kai (Third Stage) Last Man Standing.
35 100 Failed Tsuna Nobori (Final Stage) About 20 meters up. Last Man Standing.  First person to attempt the Final Stage after his own kanzenseiha.
36 100 Failed Tsuna Nobori (Final Stage) About 24.5 meters up. Last Man Standing. First person to attempt the Final Stage twice after Kanzenseiha.
37 100 Failed Soritatsu Kabe (First Stage) Time Out.

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