History Recap / ThePowerpuffGirlsS4EP3

* DidntThinkThisThrough: Although never brought up in the episode, Mojo overlooks the small, yet critical fact that the same lab accident that created the Girls is also how he came to be, therefore he [[GrandfatherParadox would have undid his existence as well.]]

* EveryoneWentToSchoolTogether: Utonium was in the same class as Mrs. Keane and Sara Bellum.

* ContinuityNod: At the end of the episode, the narrator announces (much to Mojo's chagrin) that the day was saved thanks to him [[Recap/ThePowerpuffGirlsS1E7MajorCompetitionMrMojosRising once again]] accidentally did his part in the creation of The Powerpuff Girls.

When Professor Utonium invents a time portal for a demonstration during career day at the Girls’ kindergarten, Mojo Jojo uses it travel back in time and try to kill the Professor when he’s still a child.

* CreateYourOwnHero / NiceJobFixingItVillain: For the second time, Mojo Jojo is somehow responsible for the girls’ creation. The narrator even lampshades it.

* InstructionalFilm: Utoniums’ class in 1959 is shown one about the dangers of the Townsville volcano.

* PaperThinDisguise: Mojo’s disguise as Mary. Still, everyone falls for it until he reveals himself.
* PortalToThePast: The professors’ time portal.

* SaveTheVillain: The girls save Mojo from falling into the volcano, since they decide they can’t leave him behind in the past.

* StableTimeLoop: Mojo goes back in time to kill the young Professor Utonium. Instead, his actions and those of the girls are what inspire Utonium to become a scientist and one day create the girls.
** On a smaller note; when testing the time portal, the professor retrieves his car keys from the day before. He even states “so that’s where they went”.

* MakeWrongWhatOnceWentRight: Mojo attempts to go back in time and prevent the girls from ever being created.

* NiceJobFixingItVillain: For the second time, Mojo Jojo is somehow responsible for the girls’ creation. The narrator even lampshades it.
* OlderThanTheyLook: Professor Utonium, Ms. Keane, and Ms. Bellum all went to school together in 1959 as young kids (likely out of Kindergarten) and likely be in their forties at the least at the date the episode aired (2001) but they don't resemble middle-aged adults (especially Ms. Keane).

* OlderThanTheyLook: Professor Utonium, Ms. Keane, and Ms. Bellum all went to school together in 1959 as young kids (likely out of Kindergarten) and likely be in their forties at the least at the date the episode aired (late 1990s) but they don't resemble middle-aged adults (especially Ms. Keane).

When Professor Utonium invents a time portal for a demonstration during career day at the girls’ kindergarten, Mojo Jojo uses it travel back in time and try to kill the professor when he’s still a child.

* TimeTravelEpisode: The main plot of this episode.

* DidntThinkThisThrough: Though his plan fails in the end, Mojo overlooks the small, yet critical fact that the same lab accident that created the Girls is also how he came to be, therefore he [[GrandfatherParadox would have undid his existence as well.]]

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* BigNo: Mojo Jojo during the end sequence, when the narrator points out that he once again had a hand in creating the Powerpuff Girls. The narrators counters with a BigYes.

* MakeWrongWhatOnceWentRight: Mojo attempts to go back in time and prevent the girls from every being created.

* MuggedForDisguise: Mojo Jojo does this to one of the parents attending career day to get into the school unnoticed.

When professor Utonium invents a time portal for a demonstration during career day at the girls’ kindergarten, Mojo Jojo uses it travel back in time and try to kill the professor when he’s still a child.

* TheFifties: Professor Utonium's (along with Ms. Bellum and Ms. Keanes') school day takes place in 1959.

* ReformedBully: Surprisingly, professor Utonium is revealed to be one of these. He was quite a BrattyHalfPint during his youth who liked to pick on the nerd in his class. Good thing that he redeemed himself after discovering science, and became the good man we all know him to be.

* StableTimeLoop: Mojo goes back in time to kill the young professor Utonium. Instead, his actions and those of the girls are what inspire Utonium to become a scientist and one day create the girls.

* ReformedBully: Surprisingly, professor Utonium is revealed to be one of these. He was quite a BrattyHalfPint during his youth who liked to pick on the nerd in his class. Good thing that he redeemed himself after after discovering science, and became the good man we all know him to be.

* BigNo: Mojo Jojo during the end sequence, when the narrator points out that he once again had a hand in creating the Powerpuff Girls.

* AcidTripDimension: the fifth dimension through which one must go to achieve time travel.

* ButterflyOfDoom: discussed; the professor warns the girls to be very careful while in the past, and not use their powers unless forced to, since anything they do could potentially change the timeline.
* ClimbingClimax: Mojo climbing the volcano with the young Utonium as his captive. He has to climb since in 1959 his observatory, and the staircase leading to it, have not been built yet.

* HyperspaceIsAScaryPlace: when Mojo uses the time portal to travel back, the professor states that transporting a complete person is a lot harder than small objects, and Mojo may not even survive his trip through the Fifth Dimension. Mojo survives alright, but you can tell from his reaction that the time travel is very unpleasant. Bubbles has a similar reaction.

* NiceJobFixingItVillain: for the second time, Mojo Jojo is somehow responsible for the girls’ creation. The narrator even lampshades it.

* PortalToThePast: the professors’ time portal.
* ReformedBully: surprisingly, professor Utonium is revealed to be one of these. He was quite a BrattyHalfPint during his youth who liked to pick on the nerd in his class. Good thing that he redeemed himself after after discovering science, and became the good man we all know him to be.
* SaveTheVillain: the girls save Mojo from falling into the volcano, since they decide they can’t leave him behind in the past.

* TimeAndRelativeDimensionsInSpace: the time portal allows for both a time and a geographical location to be programmed, so it can send you anywhere and anywhen.
* TimeTravelEpisode: the main plot of this episode.

* SchoolyardBullyAllGrownUp: surprisingly, professor Utonium is revealed to be one of these. He was quite a BrattyHalfPint during his youth who liked to pick on the nerd in his class. Subverted in that unlike most other examples of this trope, he redeemed himself after discovering science, and became a good man later on.

* SchoolyardBullyAllGrownUp: surprisingly, professor Utonium is revealed to be one of these. He was quite a BrattyHalfPint during his youth who liked to pick on the nerd in his class. Good thing he discovered science and redeemed himself.