Let's create a "TMNT" universe with:
*Donatello, Leonardo, Michaelangelo and Raphael = rats (Teenage Mutant Ninja Rats)
*Splinter = turtle
*Shredder = Utrom
*Krang = ordinary Earth human
*Bebop = rhino
*Rocksteady = warthog
*April = secretary
*Irma = reporter
*Burne = cameraman
*Vernon = TV station boss
*Technodrome = heroes' hideout
*New York City sewers = Krang's and Shredder's hideout
*Turtlevan, Turtleblimp, Battleshell = Krang's and Shredder's vehicles
*Transport module = heroes' vehicle
*Northampton, Massachusetts = main-setting
*New York City = where April's or Casey Jones' family lived
*Razhar = alligator turtle
*Tokka = wolf