This is where you or a Sonic character turn into the flame princess and guardian of the Sol Emeralds, Blaze.

Try not to intentionally make yourself hot.

Here's what I got so far

Object TF: You find the Sol Emeralds outside your house. Will you pick them up?

Possession TF: Eggman Nega has succeeded in killing Blaze, resulting in her becoming a ghost. Who will she possess to become the next guardian?

Skinsuit TF 1: You were a huge fan of Blaze, always playing as her in the games and collecting figures. One day, you ordered a costume of Blaze. It comes in the mail and looks life like. Do you put it on?

Skinsuit TF 2: Blaze needs a vacation from her duty as guardian and princess. But who would be willing to take her place?

Twinning TF: Blaze never had any siblings as a kid. You feel sorry for her and wish you could give her a real family. You soon found a way to make yourself her twin.

Or you could just make it up!