Into Dimension X!

Into Dimension X! is the 24th episode of the second season, and the 50th episode of the series overall. It aired on September 19th, 2014. It became available on Nick.com on September 12, 2014.

Official Description
When the Turtles go to the bizarre realm of Dimension X, Mikey is the only one who can figure the place out.

Characters

 * Leonardo
 * Donatello
 * Raphael
 * Michelangelo
 * Leatherhead
 * The Kraang
 * Traag
 * Granitor

Trivia

 * First and only appearance of Granitor.
 * Last appearance of Traag.
 * The SRMFF episode Leo, Raph and Mikey were watching foreshadows The Invasion.
 * The time in Dimension X moves faster than the time on Earth.
 * Leatherhead sent the Turtles a message similar to a character from the movie "Star Wars" would do it, by hologram.
 * The scene where Raph, Leo, and Donnie all jump at high lengths in dimension X is a reference to the rooftop scene in The Matrix.
 * The breathing machines of the Turtles are based on the breathing machines that were used in the original Mirage Comics and in the 2003 series, both while they are on the the Triceratons' mobile Homeworlds.
 * The brand of the VCR the Turtles watched the beginning of the final episode of "Super Robo Mecha Force Five" on read "Guanosonic".
 * a Theremin, an instrument popularly used in old B-rated science fiction films and shows in the 50's was playing throughout the episode.
 * The unusual laws of physics of Dimension X, with its tiny gravity wells and travel by leaps of faith from surface to surface, are extremely similar to the equally unusual in-game physics of the video game Super Mario Galaxy.
 * Before Mikey leapt into the Dimension X portal, he longingly recalled a series of sepia-toned memories of his shared moments with Leatherhead in the past.