Watch Teenage Mutant Ninja Turtles (2012)
The Teenage Mutant Ninja Turtles license has been around for more than two decades, spawning several iterations. The latest such iteration is the series that debuted in 2012. Much like the most recent movie, the '12 version of TMNT as a cartoon goes for a computer-generated design over normal animation.
Furthering the design choice is that each of the rat-taught turtles has unique designs and personality quirks, further differentiating them beyond his headband. Team leader Leonardo is not only known for his katanas, but is a fan of a cheesy 60's animated science fiction series and has wrappings around his hands and feet. Raphael is temperamental and still wields sais, but now keeps a pet turtle and has a jagged crack across his shell. Donatello still has an affinity for technology, but has a gap in his teeth and a crush on the teenage April O'Neil. Michelangelo is still a party animal, but has picked up a habit of giving all the mutated antagonists nicknames like Leatherhead or Snakeweed. Splinter maintains an august nature and teaches his students well, being referred to properly as "sensei." April is the daughter of a scientist who was captured by the cephalic alien race known as Kraang, and is also studying to become a female ninja, or kunoichi.
The series has several different antagonists with different goals. The Shredder longs for the destruction of the turtles and Splinter, using goons like the tech nerd, Baxter Stockman, an expy of Chuck Norris who winds up mutating as part wolf, and even his own daughter Karai, who tempts Leonardo. The Kraang have their own undisclosed goals but their plans always involve mutagen. They also have a unique way of talking to others and when giving orders.