uhh... I don't think I'd participate in any 5th, 6th 7th or 8th turtle rpgs, sorry. I enjoy them most for their uniqueness.
I was attempting to point out that there ARE lots of other characters within the turtles storylines which are available for consideration and or modification to play..
Maybe a human character? Purple Dragon? Ninja? Civilians? Scientists? FBI agents? Doctors? (Vets?)... or Aliens? Utroms, Triceratons? Demons? Metahumans? Magic weilders? Vampires? Werewolves? What about some sort of creatures from Japanese myths?
What about the many supporting characters? April, Casey, Shadow, Ninjara, Any Mutanimal could be revisted in a cool and creative way... Renet?
Karai? A Foot? Leatherhead? If you like the idea but want to potray it in a different way, then try that... creative licences are free and can carry you anywhere.
The thing I love about tmnt is the possibilities are absolutely endless.
What is the point of having a TMNT rpg when you are putting demons and mythical creatures into it, ninja's and gansters and purple dragons and turtles would be the only thing i side on.