#and 03 raph has a superhero rivalry with mikey?

[iztarshi]

At least three Raphaels have taken on superhero personas in situations where they were working without their brothers. Also situations where they were variable amounts of not okay.

87!Raphael becomes the Green Defender when he thinks he's dying and decides to make the world a better place before he does. He's not with the others because he can't handle saying goodbye to them and doesn't want to drag them into danger.

07!Raphael becomes Nightwatcher to continue protecting New York when either Splinter or Donatello has forbidden it. He's resentful of his brothers for making him do this alone and for not noticing it's him and it's destroying his relationships with them.

Rise!Raphael becomes the Red Angel of Preventing Harm when his brothers just don't want to fight crime with him. It's less of a big deal than in 07 - they're still going out with him sometimes - but this is the Raph who copes worst with being alone.