History Recap / TeenageMutantNinjaTurtles2003SE4TheEngagementRing

Casey has finally decided to propose to April, and enlists Raph's help in looking for an engagement ring--in the process, a strange old man gives Casey a mysterious ring. Initially delighted, Casey soon comes to regret putting the ring on April's finger when she starts acting strangely and attacking anything that moves.

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!! This episode provides examples of

* BadLiar[=/=]OhCrap: Apparently, during the time that the turtles were trapped in the future, Hun had told the Purple Dragons that he had personally killed all four of the turtles--but when Hun sees Raph on the streets, he has a hard time explaining to his men how Raph's still alive.
* BattleTrophy: Hun has told the Purple Dragons that the sai and a nunchuck tucked into his belt are this, from when he supposedly killed them himself.
* BluntYes: Hun's response to when Casey asks if he still wants the ring, despite what it would do to him.
* TheBusCameBack: Hun is seen for the first time (outside of the opening credits) since [[Recap/TeenageMutantNinjaTurtles2003S5E13EnterTheDragonsPart2 the end of Season 5]].
* CatchAFallingStar: Raph catches April and Casey when Casey removes April's ring, reverting her back to her normal human form a hundred feet up in the air.
* ClingyMacGuffin: During a moment of clarity, April tries to take the ring off, but it's stuck.
* ClothesMakeTheManiac: The Ring of Yin.
* EvilMakesYouMonstrous/ PowerUpgradingDeformation: April's demon form. Thankfully it doesn't last.
* FakeUltimateHero: Hun tried to build up his rep by claiming to have personally killed the Turtles and getting some replica weapons as proof.
* HopeSpot: When the demonic April attacks the Purple Dragons' helicopter, Mikey wonders if this means she's still on their side. Her turning her attention to the Turtles' helicopter quickly sets him straight.
* {{Irony}}:
** When April starts behaving strangely, Casey worries it means she's going to change her mind about getting married, but Raphael is certain there's a logical explanation for all this. Cue a demonic April bursting through the wall.
** Out searching for the ring, Hun is most amused that his "old friend" Casey Jones has led him right to it.
* LettingHerHairDown: Inversion: If April's hair isn't in her trademark bun, the situation generally isn't good. When she turns into a demon it falls loose completely, yet inexplicably returns to its trademark bun when she becomes human again.
* MyGodWhatHaveIDone: Casey over the ring he gave April causing her to go demonic.
* OneWingedAngel: April's demon form may apply.
* OOCIsSeriousBusiness:
** April can immediately tell something is up when Casey wears a tuxedo.
** The ring causes April's anger to surge out of control.
* PowerGlows: The Ring of Yin.
* RaceAgainstTheClock: Hun is in a rush to gain a powerful weapon because of rumblings that the Foot is reforming and the Shredder will soon return.
* RealMenWearPink: Mikey asks if he can be April's Maid of Honor. At first this just seems like Mikey's signature humor, but in "Wedding Bells and Bytes" (the series finale) its revealed that he actually ''is'' her Maid of Honor
* RedEyesTakeWarning: April when under the ring's influence.
* TantrumThrowing: At first it seems like April is doing this, throwing dishes at Casey because he put them away wet, but it was actually due to the Ring of Yin's influence.
* TemporarilyAVillain: April, thanks to the Ring of Yin.
* ThatCameOutWrong: Casey's marriage proposal to April:
-->'''Casey''': April, I love you like... like Gretzky loves hockey, and I [[AccidentalInnuendo wanna play you for the rest of my life]]...- Dah! I mean your life! I-I mean Gretzky's life! - I mean-
* VoiceOfTheLegion: April when she's wearing the Ring of Yin.
* WackyMarriageProposal: Casey tries to make the proposal all romantic and memorable by wearing a tux and doing it out on a lake, but he's extremely nervous and bugs start to swarm. After they both get drenched, Casey just cuts to the chase with a far more simple proposal.
* WithThisRing: I will turn you [April] into a demon.
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* TheBusCameBack: Hun is seen for the first time (outside of the opening credits) since [[Recap/TeenangeMutantNinjaTurtles2003S5E13EnterTheDragonsPart2 the end of Season 5]].

* CatchAFallingStar: Raph catches April and Casey when Casey removes April's ring, reverting her back to her normal human form a hundred feet up in the air

* ClothesMakeTheManiac: The Ring of Yin
* EvilMakesYouMonstrous/ PowerUpgradingDeformation: April's demon form. Thankfully it doesn't last

* LettingHerHairDown: Inversion: If April's hair isn't in her trademark bun, the situation generally isn't good. When she turns into a demon it falls loose completely, yet inexplicably returns to its trademark bun when she becomes human again

* OneWingedAngel: April's demon form may apply

* PowerGlows: The Ring of Yin

* TemporarilyAVillain: April, thanks to the Ring of Yin
* ThatCameOutWrong: Casey's marriage proposal to April;
-->'''Casey''': April, I love you like... like Gretzky loves hockey, and I [[AccidentalInnuendo wanna play you for the rest of my life]]...- Dah! I mean your life! I-I mean Gretsky's life! - I mean-
* VoiceOfTheLegion: April when she's wearing the Ring of Yin

* BadLiar[=/=]OhCrap: As it turns out, during the time that the Turtles were in the future, Hun had told the Purple Dragons that he had personally killed all four of the Turtles--but when Hun sees Raph (alive and well) on the streets, he has a hard time explaining to his men how Raph's still alive.

* BadLiar: Hun's not very good at explaining why Raph's still alive when he told his men that he'd personally killed all four of the Turtles

* OhCrap: Hun has one when he sees Raph on the streets. This is revealed to be because he told the rest Purple Dragons that he'd single-handedly killed all four of the Turtles.

* RealMenWearPink: Mikey asks if he can be April's Maid of Honor. At first this just seems like Mikey's signature humor, but in "Wedding Bells and Bytes" its revealed that he actually ''is'' her Maid of Honor

Casey and Raph have gone looking for an engagement ring for Casey to propose to April when a strange old man gives Casey a mysterious ring. Initially delighted, Casey soon comes to regret putting the ring on April's finger when she starts acting strangely and attacking anything that moves.

* BadLiar: Hun's not very good at explaining why Raph's still alive when he told his men that he'd personally killed all the Turtles
* CatchAFallingStar: Raph catches April and Casey when Casey removes April's ring, reverting her back to human form a hundred feet up in the air

* LettingHerHairDown: Inversion: If April's hair isn't in her trademark bun the situation generally isn't good. When she turns into a demon it falls loose completely, yet inexplicably returns to its trademark bun when she becomes human again
* OhCrap: Hun has one when he sees Raph on the streets. This is revealed to be because he told the Purple Dragons that he'd single-handedly killed all four of the Turtles.

* OhCrap: Hun has one when he sees Raph on the streets. This is revealed to be because he told the Purple Dragons that he'd single-handedly wiped out the Turtles

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* EvilMakesYouMonstrous/ PowerUpgradingDeformation: April's demon form. Thankfully it doesn't las

* OneWingedangel: April's demon form may apply