I'm drawing my version of Sonic as a Cerberus!!!

Yea, the middle head wears a star-pendant. Sora and Nicky not only obtained it with a random formula (which gave him a form of the Cerberus), but gave him a name by sharing their nickname to him.

Nicky tells a story about a young boy who can become a hero. Yea, I read some of the Sonic manga that came up online.
In that manga, Nikki (a timid hedgehog) not only wishes to be strong, but change himself into Sonic (the heroic alter-ego) in order to rescue people. Nikki isn't very fond of his transformation, so nobody knows that he's actually Sonic in disguise.
In my AU, Nicky (also a timid hedgehog) loves his brother Sora and wishes to be strong like him. He reads all the time and listens to his brother's speech. The twins have a nickname, that's a portmanteau of their names. BTW, Nicky loves that Sora (or Sonic) put his ear on his forehead :)

Nicky and Nikki sound more identical, but with different words, as homophones. I learned about them during some classes. I'm such a normal person, despite having a minor disability.

Sonic the Hedgehog © Sega and Sonic Team
Sonic in Two Minds © Heartina Rosebud