[[caption-width-right:350:[[http://www.youtube.com/watch?v=MfPx75NV-Pk Stronger than before!]]]]

%%The Bumblebee is not part of the Five Man Band. Do not remove%%
->''"It's Morphin' Time!"''[[note]]Followed by "Zeo Ranger (number), (color)!" for the five main Zeo Rangers, and "Gold Ranger Power!" for the [[SixthRanger Zeo Gold Ranger]][[/note]]
-->--'''[[ByThePowerOfGreyskull Morphing call]]''', ''Power Rangers Zeo''

->''[-"[[EtherealChoir Gooooooooooo Zeeeeeeeoooooo....]]"-]''

The fourth season of ''Franchise/PowerRangers''; a follow up to ''Series/MightyMorphinPowerRangers'', adapted from ''Series/ChourikiSentaiOhranger''. Rita and Zedd have been reduced to homeless rovers on what was once their moon kingdom due to the invading Machine Empire, who want to gut Earth of its natural resources. The Rangers are briefly left powerless after the destruction of their command center. But thankfully, Zordon reveals that he and Alpha have tapped into the mighty Zeo Crystal and they have produced brand new ranger powers, including for the first time brand spankin' new uniforms for the ''entire'' team.

''Zeo'' is largely where the franchise began to grow up, by introducing a few season-spanning plot threads, becoming ''slightly'' less preachy, with charity work and enviromentalism becoming less common plot elements, and much more character-driven. Billy, the last original Power Ranger retired from active duty to act in a tech support and MissionControl role, as well as serving as a mentor to the newer rangers under Zordon. Newer characters such as Katherine and Tanya, and even Rocky and Adam, were allowed to grow beyond their SuspiciouslySimilarSubstitute beginnings. Even Bulk and Skull managed some CharacterDevelopment after going through police training and later becoming private detectives. The show also reintroduced Jason, the original Red Ranger, to return and take up the role of their SixthRanger.

Zedd and Rita were also not quite out of the picture, as they worked to reclaim their status as the series villains and sometimes their guerrilla strikes against the Machine Empire ended up helping the Rangers. It is one of the more popular seasons, as it had classic characters, an epic scope ''and'' decent writing. It also set up the concept of the Ranger changing powers and costumes once a year, and further established more Rangers trading in and out. Some also consider it to be in some ways better than the original seasons in terms of quality, with a greater focus on character development and more dramatic moments. In other words, ''Zeo'' had some big shoes to fill, and they were filled well.

Unfortunately ratings that had begun to decline in season 3 dropped even further in ''Zeo'', leading to ''Turbo'' dropping several plot points and hastily transitioning to the ''Turbo'' powers with barely an explanation.

One of the confusing elements of the series is that it doesn't really have any conclusive ending; the series ends with the Machine Empire crippled, but not destroyed, with Lord Zedd declaring "We're back!" and plotting their full return. Then the ''[[Series/PowerRangersTurbo Turbo]]'' movie comes out, where the Machine Empire doesn't get any mention, Lord Zedd and Rita are apparently on vacation and the Zeo powers are dropped in favor of the Turbo powers. The infamous fan hoax ''Scorpion Rain'' was an attempt to bridge this gap, claiming to be a multi-part MissingEpisode where Rita and Zedd fight against the Machine Empire climaxing with a royal rumble on the moon and Serpentera being buried. The story was placed retroactively into continuity with the ''Series/PowerRangersWildForce'' episode "[[MilestoneCelebration Forever Red]]," although only in BroadStrokes. WordOfGod regarding Zedd and Rita is they took a honeymoon to raise their child Thrax, who appears in ''Series/PowerRangersOperationOverdrive''. This season is also infamous for the DearJohnLetter that Kimberly sent to Tommy in "No Business Like Snow Business".

Succeeded by ''Series/PowerRangersTurbo''.
!!Recurring ''Power Rangers'' tropes include:

* AttackOfThe50FootWhatever: Besides the usual monster attacks, the season finale "Good as Gold" sees the Rangers grow in size in order to combat King Mondo. Sure they could've used their Zords, but Trey said there was no time for that. Yeah, right.
** He's kinda justified- considering that Mondo was rebuilt ''after'' being sliced in half by the Super Zeo Megazord earlier, presumably Trey thought that the Rangers themselves could defeat him again.
* AutobotsRockOut:
* BigBad: King Mondo
* ChestInsignia: Personal geometric shapes on the helmet visors, team emblems on the belts and various pieces of equipment (including the hilts of the Super Zeo Megazord's sabers and the center of the Warrior Wheel).
** BilingualBonus: The Gold Ranger's visor is the kanji for "King," as his ''Ohranger'' counterpart was named King Ranger.
** Note that the visors also follow a NumerologicalMotif, hence the rather odd choice for Tanya's.
* CityOfAdventure: Angel Grove
* FiveManBand: Naturally.
** TheHero: Tommy
** TheLancer: Rocky
** TheSmartGirl: Kat
** TheBigGuy: Adam
** TheChick: Tanya
** MysteriousProtector: Trey
** SixthRanger: Jason
* HomeBase: The Power Chamber, beneath the site of the old Command Center.
** ElaborateUndergroundBase: Besides the Power Chamber, they also had all the Zeo zords (minus Pyramidas) stored in a hangar facility built into a snowy mountain on the outskirts of Angel Grove. They notably shot the Red Battlezord, the Super Zeo Zords and the Warrior Wheel out of a big-ass cannon several times.
* HumongousMecha
** AnimalMecha: Just a few: Tommy's Phoenix, Rocky's Sphinx, and Adam's Bull.
** CombiningMecha: The main team came together in two combinations, the Zeo and Super Zeo Megazords. The former could also combine with the Red Battlezord to make the Mega Battlezord. The Zeozords and Battlezord could then join Pyramidas for the Zeo Ultrazord; which also had an alternate formation with the Super Zeozords instead of the Zeozords.
** MechaExpansionPack: One of the franchise's earlier cases, where the Zeo Megazord could equip different helmets from the component Zeozords.
** TransformingMecha: the Warrior Wheel and Pyramidas.
* LawOfChromaticSuperiority: Tommy got his own Zord (the Red Battlezord) and was the primary pilot of the Defender Wheel (though Rocky got to use it once.)
%%* MadeOfExplodium
* MakeMyMonsterGrow: Lifted directly from its source material, this is Klank and Orbus' reason for living.
** In an interesting variation, the FinalBattle sees [[spoiler:Trey make the ''Rangers'' and himself grow to fight King Mondo and his giant Cogs.]]
* {{Mooks}}: Cogs
** {{Giant Mook}}s: The series first example. In "Good As Gold" King Mondo grows and has a group of Cogs grow with him.
** {{Lampshaded}} in Episode when one uses "Mook" as a password
* RecycledInSpace: Averted. Production took the ancient world cultures theme from ''Series/ChourikiSentaiOhranger'' and downplayed them so that things were kept as generic as possible - so stuff was recycled, but not [[foldercontrol]]

[[folder: IN SPACE ]]
* {{Thememobile}}[=/=]CoolBike: Zeo Jet Cycles
* WeaponOfChoice:
** SwordAndGun: Zeo Blades and Laser Pistols
** HeroesPreferSwords: Tommy's Zeo Sword
** DualTonfas: Rocky's Zeo Bladed Tonfas
** AnAxeToGrind: Adam's Zeo Hatchets
** FightingWithChucks: Tanya's Zeo Dual Nunchuks
** LuckilyMyShieldWillProtectMe: Kat's Zeo Shield (possibly also DeadlyDisc)
** {{BFG}}: Zeo Cannon
** SimpleStaff: Gold Ranger's Golden Power Staff
*** BoomStick: its Gold Rush attack
* WordPower:
** ByThePowerOfGraySkull and/or {{Invocation}}: "It's Morphin' Time!"
-->'''Kat:''' "Zeo Ranger 1 - Pink!"\\
'''Tanya:''' "Zeo Ranger 2 - Yellow!"\\
'''Rocky:''' "Zeo Ranger 3 - Blue!"\\
'''Adam:''' "Zeo Ranger 4 - Green!"\\
'''Tommy:''' "Zeo Ranger 5 - Red!"\\
'''Jason:''' "Gold Ranger Power!"

!!This subseries contains examples of:

* TheAce: Kat. She dives, dances, sings, surfs, skis, trains dogs, trains ''monkeys''... it's finally tossed a [[LampshadeHanging lampshade]] when her friends tease her for moping because the purse she made was so ugly. "C'mon, there had to be ''something'' you're not good at."
* AdaptationSpeciesChange: In ''Ohranger'', the robotic villains originated from Pangea Earth. Here, they're aliens, as with the villains from ''Zyuranger'', ''Dairanger'', and ''Kakuranger''.
* AdaptationalHeroism: Puppetman from "The Puppet Blaster" was a robotic kids show host reprogrammed by the Machine Empire, and [[SparedByAdaptation even rebuilt after the Rangers defeated him]]. His Ohranger counterpart Bara-Pinokiller was a Baranoia plant from the start.
* AdaptationalVillainy: [[FakeDefector Defector]] from "Trust in Me." His Ohranger counterpart Bara Revenger actually ''was'' a good guy, and only fought the Ohrangers when Baranoia took control of his body.
* AdvertisingCampaigns: The most memorable of which featuring "...you gotta see it... it's coming... you gotta see it... [[http://www.youtube.com/watch?v=AKal35GJ5_A unleashing the POW-AAAAAH...]]" set to a [[RearrangeTheSong variant]] of the theme tune. The full song, nicknamed "[[http://www.youtube.com/watch?v=QVmT0qp1OdY Unleashing the Power]]," circulates around the Internet.
* AdvertisingOnlyContinuity: A commercial gave the villain's name as Queen Machina instead of her husband, King Mondo, and had our heroes operating out of the original command center when they were actually operating in the underground Power Chamber.
* ArcWelding: The Red Battlezord is said to derive technology from the Alien Rangers' Battle Borgs.
* TheArtifact: The acronym U.A.O.H. shows up a few times during the season, most notably on the floor of the Zeozord hangar. This is an artifact from Ohranger, and it stands for for "United Airforce Overtech Hardware", which was the military organization the Sentai team worked for.
** Partial example: Whenever Rocky or Adam individually morph, especially in the early episodes, their arm gestures are noticeably different from the others. Theirs are actually the transformation gestures from ''Ohranger''. Incidentally, Tommy himself would perform morphing gestures closer to ''Ohranger's'' than to ''Zeo's'' in [[Series/PowerRangersWildForce Forever Red]].
* AscendedExtra: Borax's ''Franchise/SuperSentai'' counterpart, Bara-Ivy, was just a regular MonsterOfTheWeek in ''Ohranger''. Here, his race is the mortal enemy of the Gold Ranger.
* BadassBoast: At the end of "King for a Day, Part 2", Jason delivers one to Gasket:
-->"You mess with one Ranger, you better be willing to take on the whole team!"
* BadassNative: Tommy. David too.
* BadassUnintentional: Surprisingly, Bulk and Skull fought off a group of Cogs, while not with the style of the rangers, but still rather well.
* BifurcatedWeapon: The Super Zeo Megazord has twin swords that can be combined into a [[{{BFS}} large saber]] for destroying monsters.
* BrainwashedAndCrazy: Tommy. [[RunningGag Again]]. This is the fourth or fifth time.
* BrokenAesop: Possibly. Zedd and Rita send the Impursinator monster - it almost beats the rangers. The Machine Empire sends the Cog Master - it almost defeats the rangers. The Aquitian Rangers come in and help. The rangers all talk about how great teamwork is and how much it's helping them. The enemies decide to have teamwork and combine the two monsters. The rangers defeat the monsters, because somehow individually they were far stronger when the enemies worked independently - teamwork is great if you're good, but villains seeing eye to eye equals total failure?
* {{Bowdlerise}}: Due to the head TV censor in Great Britain having a huge hate boner regarding nunchucks, they cut nearly all of the sentai footage of Tanya using her nunchuck Power Weapons so the
show could air in the UK.
* TheBusCameBack: Jason returned to take on the mantle of the Gold Ranger halfway through the season.
** Ditto for Zedd, Rita and Finster.
* CassandraTruth: After Bulk and Skull's [[TheGreatestStoryNeverTold adventure]] in "King For A Day", they tried to convince everyone that they helped save the Rangers and are regarded as legends on an alien world. No one believes them except the rangers themselves, but Bulk and Skull think [[DontYouDarePityMe they're just giving them pity]].
* CharacterizationMarchesOn: Adam, Kat, and especially Rocky. In MMPR, the replacements were [[SuspiciouslySimilarSubstitute Suspiciously Similar Substitutes]] who were sort of just there to fill in spots left behind by rangers with more properly defined personalities. But now that they were original members of their own team, there was more time and room for them to showcase their different characteristics. Don't be mistaken, the show was still mostly about Tommy and their personalities were still relatively less distinct, especially when compared to the originals but at least now they didn't feel like just mere replacements.
* ChuckCunninghamSyndrome: Squatt and Baboo, after having been main villains since Season 1's "Day of the Dumpster," are last seen when Zedd and Rita evacuate the moon to escape from the Machine Empire. When the couple returns later in the season to plot their return to power, Squatt and Baboo are nowhere to be seen, with not even a throw-away line to explain their absence. Squatt actually does make an appearance two series later in the GrandFinale of ''Series/PowerRangersInSpace'', as one can see [[http://rangerarchive.com/Power%20Rangers/Army1.html here]]. However, it's alongside a whole bunch of other previously seen monsters, so he's easy to miss. No reported sign of Baboo, though.
* CliffhangerCopout: In "A Zeo Beginning," Alpha's solemn final line at the end of Part I suggests that something happened to Zordon in the Command Center's implosion. This line doesn't make it to the beginning of Part II, where Alpha instead cheerfully reveals that Zordon is just fine.
** Oddly enough, the VHS release of the episode (which had the two parter, along with only the Zeo Crsytal search in MMAR spliced together in movie format) kept Alpha's somber dialogue even with Zordon's well being immediately shown.
** Also, the third season of Mighty Morphin' ended with the Zeo Crystal being stolen. In "A Zeo Beginning" the rangers find the crystal buried amidst the rubble of the command center, speculating that [[TooDumbToLive Rito and Goldar dropped it]].
* CluelessMystery: The identity of the Gold Ranger, with all the existing characters turning out to be {{Red Herring}}s.
* ComicBookAdaptation: A planned series by Image Comics based on the show was slated, but only one issue managed to be released, which ended on a pretty big cliffhanger. [[note]]The first (and only) issue reveals that Lord Zedd kept the energies of the Ninja Power Coins after he and Rita destroyed them, but Master Vile gives them to the Machine Empire.[[/note]]
* ConservationOfNinjitsu: In one episode the Rangers went up against several hundred Cogs and just tore through them. A few episodes later, a half-dozen were able to hold them back.
* ContinuityNod: In "Good as Gold", Rita says this to Jason:
-->"Personally, I always thought you looked better in [[Series/MightyMorphinPowerRangers red]]."
** In "King for a Day", it's shown that Jason still regrets not being able to to stop the Green Candle from burning out.
-->'''Jason:''' I've let Tommy once before and I'm not gonna let it happen again!
* CreatorCameo: Koishi Sakamoto, the director and fight coordinator for both ''Super Sentai'' and ''Power Rangers'', appears in the episode "King For A Day" as Tritor, one of the warriors imprisoned in the Machine Empire's coliseum. He allies with Bulk and Skull in their escape.
* CriminalAmnesiac: Tommy in "King For A Day".
* ADayInTheLimelight: Bulk and Skull in "Bulk Fiction" and "Scent of a Weasel".
* DecompositeCharacter: The two bodies of Prince Buldont from ''Ohranger'' become two separate characters (Prince Sprocket and Prince Gasket).
* DeliberatelyMonochrome: Used in "It Came From Angel Grove", as a nod to old horror films.
* DemotedToExtra: Billy, but even as not a Ranger, he still had an important (and still rather large) role. Rocky also suffered a little from this, which is acknowledged in "Mondo's Last Stand" when he was convinced that the returning Jason was out to replace him.
* DidYouJustPunchOutCthulhu: After years of being largely irrelevant, Rita creates a monster out of Kat's purse. In 1v1 combat, it beats the zords. All of them. Even the Ultrazord, twice.
* DroppedGlasses: Happens to Billy with his contacts in "Graduation Blues". It's a good thing he still kept his old glasses.
* EarlyInstallmentWeirdness: The first time the Rangers go into battle, they morph by bringing the two halves of the morpher together and yell "Power Rangers! Z! O!". Every time after that they instead say "It's morphing time!" just like on MMPR.
* EvenEvilHasLovedOnes: Despite being machines, Mondo and Machina love Sprocket (and he them) just as much as any parents love their son. Gasket less so, but that's because he fell in love with Archerina, the daughter of one of Mondo's old rivals.
* EvilVersusEvil: Rita and Zedd spend most of this season fighting the Machine Empire.
* FamilyUnfriendlyDeath: A rather nasty, MechaMooks loophole exploiting death where [[EvilVersusEvil two groups of enemy mooks have a battle royale]]. The mooks are Tengas (bird men) and Cogs (spandex robots) You see Tengas and Cogs sluggin it out for a few shots, then it cuts to one Tenga holding down a struggling Cog while another Tenga ''tore open its stomach and ripped out its electronic guts.'' This wasn't ''Series/ChourikiSentaiOhranger'' footage that slipped past the censors, either - Tengas were ''Power Rangers''-exclusive mooks, so it was all original footage.
** Oh my goodness, ''Zeo''. Louie Kaboom, the temporary leader of the Machine Empire. Under a [[MoreThanMindControl love spell]] cast by the new villains he takes on the Rangers in combat, and is eventually defeated. However, unlike most of the mindless minions that fell to the Rangers, he remained alive for a few moments, ''stumbling around in pain while on fire and professing his love for the villain that brainwashed him.''
* {{Fanservice}}: Jason modeling in the fashion show in "Scent of the Weasel" and wearing red.
* FiveTokenBand: Tommy (Native American), Adam (Asian), Rocky (Hispanic), Tanya (African), and Kat (Caucasian, from Australia).
* [[FourTemperamentEnsemble Five Temperament Ensemble]]
** Tommy: '''[[color:green:Phlegmatic II]]'''
** Tanya: '''[[color:yellow:Choleric]]'''
** Kat: '''[[color:blue:Leukine]]'''
** Adam: '''[[color:black:Melancholic]]'''
** Rocky: '''[[color:red:Sanguine]]'''
* FixFic: With one well remembered couple throughout the seasons (Tommy/Kim), which ended because of a DearJohnLetter sent by Kimberly, there are plenty of fics reuniting them that claimed it was a fake (the person responsible usually being Kat), or that Kim was hiding the real reason for the breakup.
* GenreSavvy: In "King for a Day, Part 2," Zedd and company enjoy seeing Jason forced to fight a brainwashed Tommy. However, Zedd is smart enough to know right away that the Machine Empire defeating the Power Rangers won't do any of them any good. Much to his displeasure, he knows the only way to retain a chance of conquering Earth someday is to ''help the Power Rangers''.
* GirlOfTheWeek: Rocky had a couple…
** Bulk and Skull had one a piece, surprisingly enough, that ''weren't'' the ranger ladies. Bulk's came in as the daughter of the police captain and Skull's was a '''SUPERMODEL''' of all things.
* GladIThoughtOfIt: Happens in "A Few Bad Seeds," when Adam suggests that Rocky take a sample of his metal-eating plant and bring it to the Power Chamber for Billy to analyze. Adam is not pleased.
* GroundhogDayLoop: "A Brief Mystery of Time".
* HappyFunBall: The Midas Hound in "The Ranger Who Came In From The Gold".
* HereWeGoAgain: At the end of "For Cryin' Out Loud," Tommy and Kat are asked to babysit for twins.
* HeroicBSOD: Rocky goes through one in "Mondo's Last Stand" when he thinks he's being replaced by Jason. [[spoiler:After they defeat King Mondo, Rocky manages to get over it after Jason reassures him that he isn't trying to take his place.]]
* HeroicSacrifice: Billy, in his attempt to save Alpha 5 during the destruction of the Command Center, throws himself on an exploding console. While unharmed at the time, it is later fevealed that he got dosed with {{Phlebotinum}} that makes him incapable of ever becoming a Power Ranger again.
* HiddenDepths: Skull is revealed to be a talented piano player, but doesn't want Bulk to find out because he thinks he'll lose macho cred. Adam convinces him to give a performance... And Bulk is genuinely amazed. Aww.
** The former (possibly) gets a little more when he talks with a model he accidentally spilled a rancid smelling perfume all over. The chemistry between them seemed quite good, even though she was [[NoNameGiven never named]] [[OneShotCharacter nor ever seen again]].
* HilariousOuttakes
* HollywoodToneDeaf: Averted in "Another Song and Dance" with Tommy, who is just a genuinely bad singer. Even actor Jason David Frank was well aware that he is no singer and had no qualms admitting it and poking fun at himself about it. And in an interview with a fan at Power Morphicon 2010, he revealed that he was hoping to -- for fun and to add more comedy -- just go all out and have Tommy's singing be over-the-top bad, with the actor ''purposely'' singing out of tune (basically, with no effort in even trying to sound okay or tolerable). But, the crew wouldn't let that fly.
* HurricaneOfPuns: Rocky, when he's turning into a plant in "A Few Bad Seeds", which also involves some GettingCrapPastTheRadar when he makes some fairly suggestive comments towards Kat.
* IKnowYouAreInThereSomewhereFight: Brainwashed Tommy vs. the others in "King For A Day".
** CooldownHug: From [[ShipTease Kat]].
* ImprovFu: Occurred with Bulk and Skull when they were accidentally sent to a coliseum in another world and they get saved by another warrior, they have to face down a few guards and ultimately, they were able to take them down with the power of bumbling around.
* IncredibleShrinkingMan: Tommy and Kat in "A Small Problem".
* InterimVillain: Prince Gasket
* InterspeciesRomance: Billy and Cestria, an Aquitian.
* IWantMyBelovedToBeHappy: Kat has been in love with Tommy since her first appearance way back in season three of ''Mighty Morphin Power Rangers'', but when Kimberly breaks up with him, she does everything she can to cheer him up including setting him up on a date with another woman.
-->'''Kat:''' I'm not sure if that was really nice or ''really'' stupid...
* LeaningOnTheFourthWall: Also a ContinuityNod:
-->'''Klank:''' Zedd and Rita have just made a monster from a pink purse, your Highness.
-->'''Sprocket:''' A purse monster? That's so [[Series/MightyMorphinPowerRangers last season]].
* LeaveTheTwoLovebirdsAlone: Tanya stops the other Rangers from joining Tommy and Kat at their table during their date in "Hawaii Zeo."
* LethalJokeCharacter: The aforementioned purse monster, Impursenator. As stated before, she was a monster made out of Kat's fugly purse, and managed to almost defeat the Rangers without even really trying. They used almost every possible strategy of Zords, upgrades, combinations and formations (BOTH SETUPS for the Zeo Ultrazord) and only managed to escape when a) the Machines teleported Impursenator away [[TheOnlyOneAllowedToDefeatYou out of jealousy]] and b) she merged with the Machines' monster and somehow [[AnticlimaxBoss this made them both sucky.]]
* LiteralSplitPersonality: Trey; a natural ability for Triforians like him.
* MagicalNativeAmerican[=/=]LongLostRelative: David Trueheart.
* MakeWayForTheNewVillains: The arrival of the Machine Empire sends Rita and Zedd running.
* MarriedInTheFuture: The Christmas-themed episode, "A Season to Remember", involved a flash forward showing Tommy and Kat being married. Some shippers were not [[DieForOurShip accepting of this development]] and [[FanonDiscontinuity tend to ignore it]]. In fact, Catherine Sutherland (Kat's actor) has verified that she was in talks to appear in both [[Series/PowerRangersWildForce Wild Force's]] "[[MilestoneCelebration Forever Red]]" and [[Series/PowerRangersDinoThunder Dino Thunder]] as Mrs. Oliver (the former was scrapped during rewrites while the latter fell through due to Sutherland's pregnancy at the time).
* MusicalEpisode: Parodied in "Another Song and Dance".
* MythologyGag: The episode where Louie Kaboom shows up is called "Bomber in the Summer", a nod to his ''Ohranger'' name Bomber the Great.
* NoCelebritiesWereHarmed: Queen Machina sounds a lot like Natasha Fatale from ''WesternAnimation/RockyAndBullwinkle''.
* NonActionGuy: Billy becomes one of these.
* NonMammalianMammaries: Queen Machina and Archerina are robots... but because they're ''female'' robots, they have these.
* NotAfraidOfYouAnymore: In the final episode, Rita tells Mondo she and Zedd don't fear him any longer. And yet, [[spoiler:Zedd pretended otherwise to trick the Machine Empire]].
* NotNowKiddo: Episode 6 has Prince Sprocket and Klank do this to Orbus, as they're busy bickering, while Orbus is the only one paying attention to their scheme.
* OfficialCouple: Tommy/Kim was a carryover from [[Series/MightyMorphinPowerRangers Mighty Morphin]] until she dropped a Dear John Letter midseason. Tommy/Kat begun shortly afterwards.
* OhCrap:
** The monster Cruel Chrome mutters "This can't be good" as he sees the Super Zeo Ultrazord looming over him.
** Actually, most of the monsters feel this way about the Zeo Ultrazord / Super Zeo Ultrazord - they see the Megazord loom over them as it's apparently far taller then a standard Megazord and know it's a bad sign.
* OhNoNotAgain: Lord Zedd spends much of his screentime in "The Ranger Who Came in from the Gold" fixing a flat tire on his and Rita's RV; Rita whines when, at the end of the episode, [[HereWeGoAgain the RV gets another flat tire]].
* TheOnlyOneAllowedToDefeatYou: By the end of the season, both Rita and Mondo display this attitude towards the Rangers.
-->'''Mondo:''' The final defeat of those putrid Power Rangers is ''mine'' and mine alone!\\
'''Rita:''' That tub of rebuilt parts isn't grabbing my glory!
*** Notably, Zedd of all people is a subversion. He'd gladly destroy the Rangers himself, but as he asks, "[[PragmaticVillainy Who cares]] ''[[PragmaticVillainy who]]'' [[PragmaticVillainy destroys those Ranger brats?]]"
* OutsideContextProblem: The Machine Empire decides to invade Earth and drive off Rita and Zed with no in-universe warning (the viewers knew thanks to the non-canon "Zeo serial" that had been playing at the beginning of MMPR reruns in the lead-up to ''Zeo''). Lampshaded, once the Rangers begin to ask a ton of questions about the Machine Empire and cause Alpha to have a nervous breakdown.
* ParentalBonus: The target audience for Power Rangers is 6-11 which means that if their parents were between 20 and 30 they would be born between 1954 and 1970, which means the majority would have been alive for the third moon landing in 1971, meaning they would likely remember the golf ball(s) Alan Shepard left there. Why does this matter you ask? Well Rito finds one ~3 minutes into "The Joke's on Blue". Also qualifies as a GeniusBonus for the kids who are also knowledgeable about it.
* PieInTheFace: A group of Cogs is defeated this way, and it's hilarious.
* PleaseIWillDoAnything: Amnesia-struck Rito and Goldar beg Bulk and Skull to help them find their families, and resort to this. Bulk and Skull force them to be servants.
* PlotRelevantAgeUp: Billy in "Rangers of Two Worlds", [[spoiler:revealed as a side-effect of his Regenerator restoring his age to normal during MMPR's Alien Rangers arc]].
* PreMortemOneLiner: Shortly before blowing Admiral Abominator up with the Zeo Mega Battlezord, Tommy delivers the line "Time for you to weigh anchor, Admiral!"
** To the Puppet Blaster: "Looks like your show has just been cancelled!"
* PutOnABus: When the Machine Empire came in at the start of the season, the old villains beat a hasty retreat on Serpentera to Master Vile's (in Zedd's case, this was clearly PutOnABusToHell). Half a season later, Zedd, Rita and Finster came back, but without Squatt and Baboo.
* PyramidPower: Pyramidas. Rocky's sphinx zord could also give the Zeo Megazord a pyramid-like helmet.
* QuestForIdentity: Rito Revolto and Goldar spend the first half of the season with this as a case of Identity Amnesia.
* ReadingsAreOffTheScale: In "For Crying Out Loud," the Boo-Hoo Monster alters baby Joey's cry, resulting in this.
* RearrangeTheSong: of the original "Go Go Power Rangers".
* RedHerring: Several people are set up as the Gold Ranger, including Billy and Skull.
* ReunionShow: "Rangers Of Two Worlds" brings back the Rangers of Aquitar to team up with the Zeo Rangers.
* TheRez: The whole David Trueheart storyline.
* RoleReprisal: Austin St. John returns as Jason Lee Scott, the original Red Mighty Morphin' Ranger, in "A Golden Homecoming" to become the temporary host of Trey of Triforia's Gold Zeo Ranger powers.
* RoyalsWhoActuallyDoSomething: King Mondo was a villainous example, having fought the Rangers personally on more than one occasion. His eldest son Prince Gasket was even more capable, apparently.
* ShesAManInJapan: The machine monster [[ForcedSleep Somnabot's]] SuperSentai counterpart, Bara-Snooska is referred to as a male.
* ShipTease: Tommy and Kat (proceeding to OfficialCouple), Tanya and Adam (tease confirmed by [[https://www.youtube.com/watch?v=yWB2jnc4dUI Nakia Burnise]], Tanya's actress; and also by Creator/JohnnyYongBosch, who played Adam, at around the 2-minute mark in this [[https://www.youtube.com/watch?v=0y0ohxjGbQE video taken]], and they talk about it again at around 30:53).
* SmellySkunk: Stenchy, one of the MonstersOfTheWeek.
* ShoePhone: While a lot of the later Power Rangers have morphers that have been called shoe phones by the fanbase, Skull. Has. An. [[ExactlyWhatItSaysOnTheTin Actual]]. Shoe. Phone. Make of this what you will.
* ShortTank: Tanya; she had a boyfriend who was intimidated by her athleticism.
* SparedByAdaptation: In ''Series/ChourikiSentaiOhranger'', Buldont and Multiwa, Gasket and Archerina's Franchise/SuperSentai counterparts were destroyed after growing into giants for their final battle with the Ohrangers. Despite the same thing happening to Gasket and Archerina, the two somehow survived. However, given the fact that [[ChuckCunninghamSyndrome the two ran off and were never seen again]], they may as well have perished.
* SpecialEffectsEvolution: Compared to the old Command Center set, the Power Chamber is far bigger and more impressive looking.
* SwappedRoles: A rare permanent example, the original SixthRanger is the leader, while the original leader is the Sixth Ranger.
* TakenForGranite: Jason becomes a ''literal'' Gold Ranger in "The Ranger Who Came In From The Gold".
* TeleportSpam: The Gold Ranger.
* TemptingFate: When monsters from Rita and the Machine Empire hijack the two Megazords and defeat Auric the Conqueror, Kat utters the worst phrase imaginable "Well at least it can't get any worse..." Just as she says that, Mondo sends down a squadron of Cogs.
* UnfinishedUntestedUsedAnyway: In "Mean Screen," a computer virus incapacities Angel Grove. Raymond is still working on an antivirus when things hit critical mass, and he is called upon by a morphed Adam. Thankfully, the antivirus works just fine.
* WeaksauceWeakness: Cogs are afraid of creatures with a lot of hair (as demonstrated in their fear of dogs). So having a lot of body hair would give one a tremendous psychological advantage against Mondo's cogs.
* WeaponizedHeadgear: The Zeo Megazord's alternate helmets.
* WhatHappenedToTheMouse: It was never explained just what Billy was doing all those times he disappeared and the Gold Ranger would show up.
** Prince Gasket gets gunned down by Ultrazord and blows up... into regular size, and then gets a VillainExitStageLeft when Mondo returns to resume his BigBad role. And then Gasket never appears again.