Newtralized!

Newtralized! is the 17th episode of Season 2 and the 43rd overall. It aired on May 11th, 2014.

Official Description
Raphael is worried about Casey's ability to handle big mutant threats; Raphael and Casey cross the paths of Slash and his new partner.

Characters

 * Leonardo
 * Donatello
 * Raphael
 * Michelangelo
 * Casey Jones
 * Ice Cream Kitty
 * Slash
 * The Newtralizer
 * The Kraang

Trivia

 * The Newtralizer returns in When Worlds Collide
 * The Newtralizer speaks for the first time.
 * Michelangelo plays a Pac-Man style clone video game that eats away at Donatello's radiation intel. Instead of Pac-Man, however, Mikey controls a Kraathatrogon.
 * An overhead shot of the docks reveals a sign on the warehouse roof that reads Eastman Cannery. This is yet another reference to TMNT co-creator Kevin Eastman.
 * There is a store called Cowabunga Skates that Raphael and Casey pass. This is a reference to the 80's cartoon with Michelangelo's primary catchphrase being "Cowabunga!".
 * There are quite a few Star Wars references in this episode;
 * The Kraang's new weapons schematics are shown in an holographic-like manner, similar the Death Star plans from Episode IV.
 * The Kraang's new bipedal mobile weapon feet are similar to Star Wars Episode V Imperial AT-AT walkers and Kraang soldiers end up getting smashed with a fate that is similar to the fate of Luke Skywalker's Snowspeeder.
 * The Newtralizer gets shocked much the same way that R2-D2 was eloctrocuted by Jawas in Star WarsEpisode IV.
 * Donatello throws a baseball with explosives that looked very similar to Luke's training drone from Star WarsEpisode IV.
 * In the same sequence, Donatello says "Here goes nothing!!", a quote from Lando Calrissian in Star WarsEpisode VI.
 * Casey Jones shoots a bomb-puck into the Kraang's bipedal mobile weapon small ventilation port, much like Luke Skywalker used proton torpedoes to hit a small ventilation port on the Death Star at the end of Star Wars Episode IV.
 * When Newtralizer and Slash both activate their teleporters, viewers can hear a brief sound byte of the Star Trek transporter sound effect. In addition, the teleporter itself creates a glittery dissolve effect, much like in the original series.