Naruto: What If the Mangekyo's Effect Was Saiyan Transformation?

[Comedy + Misinterpretation + Confused Protagonist + Transformation Flow] Transmigrated into the Naruto world, right in the middle of the Third War, on the verge of death—and awakened a system. Uchiha Gen thought he was about to unlock some earth-shattering Mangekyō ability. But then— His hair turned gold, aura blazed sky-high, and he got stronger near death? "System, are you sure this is an Uchiha bloodline limit and not some alien transformation?" "Host, this is called a Mutated Mangekyō. Its effect is Super Saiyan 1." Well, when in Rome… When an Iwa jōnin's Earth Dragon Bullet came flying at him, Uchiha Gen reluctantly transformed and punched it into dust. Total silence. Only he stood there, bewildered by the breeze. Meanwhile, back in Konoha, the higher-ups were losing their minds. "Look! That's Uchiha Gen! What kind of forbidden dojutsu did he just unlock?" "Golden flames? Is that some kind of Amaterasu variant?" "What's that beam from his finger? Why does it feel like a Tailed Beast Ball?" Kakashi stared at the figure, his Sharingan spinning wildly: "Obito, that thing you left me back then—did it have some hidden function I never figured out?" Uchiha Gen: "…I just transformed, okay? No need to freak out like this."