Ultraman is a righteous warrior, did you ever think that they would evolve into monsters? In fact, such a situation really exists. What is now known is that at least two Ultramans did it, especially the second one even brought in Noah.

In fact, from the Ultraman works that have been broadcast in the past, everyone can also see that Ultraman wants to blacken it is very easy, as long as there is a strong enough dark force. For example, in the theatrical version of "Ultraman Teliga", Round Valley blackened Zeta Ultraman, right? It is clear that there are dark forces at the mercy of it. However, blackening is easy, evolving into a monster is a little difficult, and the following two Ultramans have done it, and the result is really a miserable defeat, we may wish to take a look at how.
The first one is Torregia, as ultraman of the land of light, he chooses to blacken or has a certain relationship with Tyro Ultraman. We all know that this Ultraman is a scientist in the Land of Light and does not have a strong fighting power, while Ultraman often goes to the outside world to adventure, and when he comes back, he shows off in front of Torregia, and everyone says what people will think? So Torregia also wants to gain great power. But he couldn't get it in the Land of Light, so he chose darkness. In the theatrical version of "Taiga Ultraman", he and the demon god Grimmde became a powerful monster, which must be remembered by everyone, right? It's just a pity that he eventually died at the hands of the son of Tyro, and it seems that everything is providential.
In fact, how to say it, the father of Otter's family is really not a fuel saving lamp, Tyro angered Torregia, and the father of Otter is one of the culprits of Beria's blackening. Everyone knows that in the beginning, father Otter and Beria were heroes who fought side by side, and it can even be said that Beria was more powerful than him at the beginning. But then things reversed, Beria always felt that he was very good, but in the end everything was taken away by Otter's father, so he was always unbalanced in his heart, and there was a reason for his later betrayal of the Kingdom of Light. However, Beria can be said to be a legend, he has been playing for more than ten years, but he has not brought harm to the Land of Light.
And we can also see in the play that Beria has evolved into a monster more than once, and he feels that his ordinary form is not strong enough, so he begins to use the power of the monster. This is especially true in Ultraman Ged. However, as the villain, Beria, no matter how strong he becomes, will eventually be eliminated. But did you find out? After Beria was destroyed, it was a greater threat to the universe, and the demon fragments that fell on his body still had Beria's genes. Until now, it has not been dealt with, and there will be more such troubles in the future.
Of course, it's really hard for Beria and Torregia to evolve into monsters, but what about monsters turning into Ultraman? I'm afraid it's even harder. In fact, in the history of Ultraman, there is really such a person, who not only evolved from a monster to An ultraman, but also received the recognition of the Land of Light.