The Turtles and Master Splinter are having a ''very bad'' day. But as events spiral out of control, they realize this day is not all in seems...

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!! This episode provides examples of

* AllJustADream: Well, mystical illusion.
* AndThisIsFor: Raph, Don and Mike attack the Shredder whilst screaming that that it's vengeance for April, Casey and Klunk respectively.
-->'''Raph:''' This is for April!\\
'''Don:''' Casey!\\
'''Mike:''' And Klunk!
* AngstWhatAngst: Invoked. As he realizes the trick, Splinter says the grief he's experienced is actually quite hollow.
* BadBoss: Karai is less than respectful to the five Foot Mystics.
* BadassBoast: The Shredder makes his entrance with an epic one:
-->'''Splinter:''' It was not Bishop who found us at the lair, Donatello. I cannot sense the source, but there has been a great evil in our presence all evening.\\
'''Don:''' But it doesn't make any sense, Master. Who would even have that kind of power?\\
'''The Shredder:''' Come, Donatello, surely you realize there is only one who could bring this level of vengeance down upon you.
* BecauseYouWereNiceToMe: Though they would later insult his species, the Foot Mystics note that they appreciated that Ch'rell had a healthy amount of respect for them, unlike his daughter. Not that Karai cares what they think.
* BigNo: Donnie after April and Casey get blown up.
* TheBusCameBack:
** The Foot Mystics return after having seemingly been destroyed in Season 1's "Return to New York, Part II".
** Karai returns for the first time since Season 3's "Exodus, Part II", in which she was about to be returned to Earth and handed over to the authorities by the Utroms.
* TheEndOrIsIt: Though they've prevailed against their foes, Splinter admits to the Turtles it's not over and that they'll have to be on their guard. The final scene with Karai demonstrates he doesn't know the half of it.
* {{Foreshadowing}}: The Foot Mystics attacked the Turtles and Splinter during their meditation in their lair. [[spoiler:This is how the Foot found the Turtles and will be able to mount the assault on the lair in "Scion of the Shredder".]]
* FromBadToWorse: Invoked as part of the plan. Everything that can go wrong for the Turtles and Splinter does, and it only gets worse from there.
* ItsAllMyFault: Don blames himself for not realizing that the Shell Cell signature could be traced and everything that happens because of that. [[BigBrotherInstinct Raph assures him that it is not his fault]].
* KindheartedCatLover: When it's all over, Mikey is most relieved to see that Klunk is just fine.
* LosingTheTeamSpirit: The Foot Mystics try to invoke this trope in the Turtles by making it seem as though everything they care about has been destroyed or killed.
* PapaWolf: After the Shredder curb-stomps each of the Turtles and the other villains show up, Splinter steps forward. He has learned the truth and announces to the true villains that no one touches his sons.
* ProperlyParanoid: While hiding out in an alley, Splinter says he's been sensing a great evil the entire evening. The Shredder appears immediately afterwards, but Splinter can tell this is another distraction.
* TheReveal: The Turtles haven't been battered by the Shredder and endured a horrible day; it was all an illusion created by the Foot Mystics. The ending also reveals that Karai is back and out for blood.
* RousingSpeech: Splinter's appeal during the climax.
-->"My sons, hear my voice! You are not injured! You are not battered! And most importantly, you are not beaten!"
* ShutUpHannibal: The Shredder denounces him as a fool unable to recognize the severity of his situation, but Splinter calmly rebuffs him.
-->'''Splinter:''' Perhaps, but I am not speaking to you. I wait for my true foes to reveal themselves. ''[Shredder raises a gauntlet]'' ''You'' cannot touch me!
* SuddenlyVoiced: After being voiceless in the first season, the Foot Mystics have speaking lines in this episode.
* UnderestimatingBadassery: One of the Foot Mystics admits that they underestimated Splinter's capabilities.
* VillainTeamUp: The Shredder shows the Turtles that he's united their enemies against them. Of course, this is simply an illusion...
* VillainousVow: Karai does this when berating the Foot Mystics for their failure.
-->'''Karai:''' I have had enough of your parlor tricks! The next time I attack, I assure you it will be no illusion. I will ''crush'' the Turtles with my own hands once and for all!
* WhamShot:
** Splinter's surroundings changing, revealing they've all been meditating in the lair the entire time. The Foot Mystics reveal themselves soon afterwards.
** Karai being revealed as the mastermind and wearing one of the Shredder's gauntlets.
* WhyWontYouDie: Mikey remarks that no matter what they do, the Shredder keeps coming back:
-->'''Michelangelo''': How many times do we have to get rid of this guy?
* YouFool: Karai over the Foot Mystics failing.
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