In the Boruto Two Blue Vortex manga, the main character returns to Konoha after three years in hiding. Boruto's appearance from the beginning makes it clear that he is no longer the boy who left last year. During these three years, Naruto's son became quieter and stronger.
It didn't take Boruto long to demonstrate that his power had increased during the timeskip. In chapter 2 of Two Blue Vortex, he had a rematch with Code and it was during this match that Boruto used his most dangerous jutsu: Rasengan Uzuhiko.
Rasengan Uzuhiko adds a special twist to Naruto's most beloved jutsu: the Rasengan. However, unlike the regular Rasengan, this new jutsu uses not only the user's chakra but also the rotation of the planet. After being hit, the target will lose balance until death.
The terrifying effects of this jutsu were shown when Boruto used it against Code in chapter 3. Before performing Rasengan Uzuhiko, he warned Code several times that he would lose his life unless he revealed his location. entity of the Ten-Tails, indicating that his new jutsu could be deadly.
Code's condition after being hit by Rasengan Uzuhiko is proof enough of the danger of this technique. However, the new description of Rasengan Uzuhiko on Naruto's official website makes it even cooler. The newly added introduction states: “The new form of Rasengan uses not only the user's own chakra, but also the rotation and orbit of the planet, plus the corresponding centrifugal and other forces. “
The description continues: “Due to the constantly moving nature of the planet, the effects of Rasengan Uzuhiko are unmistakable, causing not only physical harm but also untold psychological harm.”
When describing the jutsu to Code, Boruto said Uzuhiko used “planetary chakra”. However, it should not be confused with the “natural chakra” that senjutsu users such as Naruto, Jiraiya, and Mitsuki use for their Sage Mode.
Rasengan Uzuhiko may sound simple, but it is actually a deadly jutsu. The way Boruto warns Code, it's clear that once hit, the target will die early and have to endure spinning vision until their life ends. This also causes irreparable psychological damage until the person dies.
One of the central parts of Boruto's personality is that he represents both Naruto and Sasuke. In Part 1, he is more like Naruto with a loud, mischievous, and idealistic personality. While in season 2, he is more like Sasuke, as a moody person, too serious and quiet.
He also inherited Naruto's optimism and altruism, as well as Sasuke's determination to get the job done, even if he had to stay in the dark for it.
Rasengan Uzuhiko is an extension of the duality within Boruto. It bears the name and basic nature of Naruto's Rasengan, and causes visual impairment and psychological damage similar to the Uchiha clan's Tsukuyomi.
With such a powerful jutsu in his arsenal, Boruto will definitely use it in the future.