The Arena of Carnage

"The Arena of Carnage" is the 7th episode of season 4 and the 85th of the overall. It aired on January 24th 2016.

Official Description
The Turtles are captured and thrown into the Triceraton Arena.

Characters

 * Leonardo
 * Donatello
 * Raphael
 * Michelangelo
 * April O' Neil
 * Casey Jones
 * Fugitoid
 * Zeno
 * Zanramon
 * Mozar
 * Zoran
 * Triceraton Soldiers
 * Spasmosaur

Trivia

 * First and only appearance of Zeno and Zanramon.
 * Shredder, Rahzar, Tiger Claw, Rocksteady and Bebop are holograms in this episode.
 * This episode is an adaption of Teenage Mutant Ninja Turtles Mirage issue 6 and the 2K3 episode Turtles in Space.
 * The fight simulation at the begining of the episode is a nod to some fighting games as Mortal Kombat and Street Fight.
 * Shredder sitting in the back watching the fights and announcing the new challengers and special attacks represents the villain Shao Kahn from Mortal Kombat, who coincidentally also wears a horned helmet, spiked shoulder pads and a cape.
 * Leonardo defeats Tiger Claw punching him during a spinning jump and shouting "Shoryuken!" while flames appear in the background, a reference to Street Fighter.
 * Right before being defeated, Rahzar stands dizzy in place, waiting for Michelangelo's final attack, a reference to Mortal Kombat.
 * When Leonardo defeats Tiger Claw with a regular attack it was a "Fatality", but Michelangelo's final blow on Rahzar was a "Baloonality", a reference to some funny and unusual final attacks from Mortal Kombat, such as "Friendship".
 * This version of the Spasmosaur has multiple eyes, which gives it a look similar to the Rathtars from the Star Wars Franchise.