Splinter was once a normal rat. He was in the sewers when he came across some mutagen ooze. This ooze transformed him into a humanoid, intelligent rat. He then found the baby turtles, which had also been exposed to the mutagen. He trained them in the ways of ninjutsu, becoming their sensei and father figure, thus starting the Teenage Mutant Ninja Turtles' story.
Well, first and foremost, Splinter's origin as a common sewer rat is a fundamental element. It sets the stage for his encounter with the mutagen ooze, which is the catalyst for his transformation. His new - found intelligence and human - like abilities after the mutation are also key. Additionally, his discovery of the baby turtles, which were also mutated, is significant. And his decision to use his ninjutsu knowledge to train them and shape them into the Teenage Mutant Ninja Turtles we know is an essential part of the origin story.
The origin of the Teenage Mutant Ninja Turtles is really interesting. There was this mutagen that was created. Four turtles happened to come into contact with it in the sewers. Along with them, a rat was also affected by the mutagen. This rat, Splinter, had been observing the ways of ninjutsu from his owner before the mutation. After they all mutated, Splinter taught the turtles ninjutsu. They grew up in the sewers and became the Teenage Mutant Ninja Turtles we know. Their existence was soon discovered by April O'Neil, and they got involved in various battles against the evil forces in New York, especially the Foot Clan led by the menacing Shredder.
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In the 'Teenage Mutant Ninja Turtles 2014 Origin Story', the turtles' origin may be centered around an accident in a lab. This accident led to their transformation. Their relationship with April O'Neil might also play a role in the origin as she could be involved in uncovering their story. Moreover, the turtles' bond as brothers and their development of unique skills under Splinter's tutelage are important elements.
The main characters are the four Teenage Mutant Ninja Turtles: Leonardo, Donatello, Raphael, and Michelangelo. And of course, Splinter and April O'Neil.
As I said before, it depends on what 'Mayhem' is. If it's the Mayhem in the context of the black metal band, its real story is significant in the history of extreme music. It influenced a whole subculture and genre.