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"I recently saw the Darkman trilogy again simply for the reason I wanted to see Darkman III: DIE DARKMAN DIE. Why? Because DIE DARKMAN DIE is one of the best titles for a sequel ever. The movie could have been about Darkman making quilts and I wouldn’t care because the title made me laugh."
The trope is named for the movie Breakin' 2: Electric Boogaloo. The subtitle struck many as hilarious (incidentally, the "electric boogaloo" is an actual style of dance), and since then, "Electric Boogaloo" has been used as a spoof subtitle for a sequel to just about anything, especially a sequel perceived or expected to be of inferior quality, or sequels with unwieldy subtitles.
The second MST3K fan convention was called "Conventio-Con Expo-Fest-A-Rama 2: Electric Bugaloo" [sic].
At least one episode of MST3K has used the "Electric Boogaloo" name as a riff, for instance, the second half of the short Hired! starts with Tom Servo going "Hired! 2: Electric Boogaloo!"
Fans were deeply, deeply saddened when no amount of letter writing could convince Michael Bay to name his sequel Transformers 2: Electric Boogaloo.
In an episode of the Clerks animated series, Randall described Dante's relationship as "Caitlin and Dante 2: Electric Boogaloo."
In an episode of Teen Girl Squad, Strong Bad was about to kill The Ugly One with "Arrowed 2: Electric Boogaloo" before realizing he had drawn her hot.
Also referenced in Yu-Gi-Oh! GX of all things, when Chazz plays "Beatron 2: Electric Bugaloo, uhhh, what I meant was Beetle Turbo".
Naturally references in Yu-Gi-Oh! The Abridged Series when Jean-Claude Magnum ends the list of movies he's starred in with "and Devil Ninja 2: Electric Boogaloo."
Used by Kevin Bishop on his Channel 4 sketch show, when spoofing unnecessary sequels: Schindler's List 2: Electric Boogaloo
One of the tutorials in Badman 2 is titled "Demons 2: Electric Boogaloo".
The English adaptation of the Pokémon manga The Electric Tale of Pikachu that roughly follows the plot of the TV show's second volume was Electric Pikachu Boogaloo.
In an episode of Mr. Show, a director is described as "the best thing to come out of Hollywood since sliced bread, not to mention its sequel, Sliced Bread II: Electric Boogaloo."
Clone High's second episode is titled "Episode Two: Election Blu-Galoo".
An episode of Phineas and Ferb parodies this with the title "Phineas and Ferb's Quantum Boogaloo". It was the second episode to feature time travel. It was also the second episode to feature Phineas and Ferb's giant roller coaster. For the record, the original title the creators wanted to go with was "Time Machine 2: Quantum Boogaloo".
Five Iron Frenzy named one album Five Iron Frenzy 2: Electric Boogaloo after this trope. It was their fourth full-length studio album, and the only one to be self-titled. By contrast, their actual second album is called Our Newest Album Ever.
The Kingdom of Loathing parodies this by naming a skill for the Disco Bandit class "Disco Dance II: Electric Boogaloo"
Referenced in Pokémon Black 2 and White 2 of all places. If you finish all the movies in Pokéstar studios, you get access to your own dressing room containing some old scripts one of which is Galvantula's Travels 2: Eelektrik Boogaloo.
Minus the Bear's first album, Highly Refined Pirates, contains a song called "Get Me Naked 2: Electric Boogaloo" - the supposed sequel to the song "Hey Wanna Throw Up? Get Me Naked" which appeared on their first EP called This is What I Know About Being Gigantic. Remaining true to the form of this trope, the "sequel" is not related to the original at all, and neither song has any correlation to its title.
In an issue of the comic book miniseries Loners, Ricochet points out that he's technically the second Ricochet, and refers to himself as "Ricochet 2: Electric Boogaloo."
One of the considered titles for the sequel of Ensign Sue Must Die was Ensign 2: Electric Sue-galoo. While the final product was titled (probably more appropriate to the subject matter) Ensign Two: The Wrath of Sue, the former was used as a promotional image
Team Fortress 2 had an update called "Robotic Boogaloo", consisting of mostly robotic-themed items.
Z, ZZ, Char's Counterattack and maybe Unicorn are in a direct line of sequels to the original series, if you ignore the huge leaps and new recast so are F91 and Victory. 0080 and 08th MS Teams are side-stories to the original series that take place at the same time, 0083 is considered a side-story but it is technically an interquel taking place between the original series and Zeta, giving a brief origin to the Titans at the end. G, X, Turn A and AGE are alternate universe series without any other media besides manga and compilation movies (only for the latter two). 00 gets a movie, Awakening of the Trailblazer whereas Wing got an OVA, the Endless Waltz that was compiled into a movie. SEED remains the only alternate universe to get a sequel television series, SEED Destiny.
It's worth noting that in many cases, the series are named for the latest variant of the eponymous Mobile Suit.
Full Metal Panic! was followed by Full Metal Panic? Fumoffu, which in turn was followed by Full Metal Panic! The Second Raid, making it the third series, not the second. (On the other hand, Fumoffu was more of a side story anthology than a true second chapter.)
Following the manga reveals that the sidestories in "Fumoffu" should have taken place during the first season, interspersed with the more serious episodes, so it's not really a sequel at all.
The second season of Freezing is called Freezing Vibration, which at this moment doesn't make sense.
Haré+Guu begat two OVA series, Haré+Guu DELUXE & Haré+Guu FINAL.
Saber Marionette J gave us Saber Marionette J Again and Saber Marionette J To X. The logical followup Saber Marionette X never made it to an Animated Adaptation, however. There was also a Saber Marionette R.
Some of the suffixes actually make sense. The "J" stands for Japoness, one of the six nations (yes, Wutai, a clone of Medieval Japan) and the main theater in the first series. The "Again" is just an OVA follow-up. The X stands for "Xian", another nation (representing China), which plays some role in J-X, and the "R" stands for Romana (representing Italy), the center of the R series.
J to X can also refer to the X chromosome since this season deals a lot with the marionettes' desires to become human girls.
Slayers series 2, 3, 4 and 5 were named NEXT, TRY,REVOLUTION and EVOLUTION-R respectively.
The movies are titled Slayers Perfect, Slayers Return, Slayers Great, Slayers Gorgeous, and Slayers Premium.
The OVA prequels are titled Slayers Excellent and Slayers Special.
The novels are titled Slayers Special, Slayers Smash, Slayers Delicious, and Slayers VS Orphen.
Tha manga are named Slayers Medieval Mayhem, Slayers Super-Explosive Demon Story, Slayers Special, Slayers Premium, Slayers Knight of the Aqualord, Slayers Revolution, Slayers Evolution-R and Slayers Legend.
The radio dramas are named Slayers Extra, Slayers N'extra, Slayers Premium, Slayers VS Orphen, and The Return of Slayers Ex.
Weiß Kreuz does this in both original and dub. The series has two sequels, an OVA and a sequel series; in the original Japanese version, the OVA's two parts are titled Weiss Kreuz: Verbrechen ("crime") and Weiss Kreuz: Strafe ("punishment"), and the sequel series is Weiss Kreuz: Gluhen ("glowing" - in German, "weiss gluhen" or "weissgluhend" means "white-hot"). The series was dubbed as Knight Hunters, and although the OVA has not been licensed, Gluhen has been released in English as Knight Hunters: Eternity.
Yu-Gi-Oh! spawned Yu-Gi-Oh! GX. It is worth mentioning that while GX takes place some time after the first series, it has little in common with it aside from the card game and a few mostly unseen cameos from a few characters from the first series (such as Yugi and his grandfather, and Seto Kaiba). On the manga side, there is also Yu-Gi-Oh! R, a side story taking place between Battle City and Millennium World.
To add confusion, the original name of the anime series known outside Japan as Yu-Gi-Oh! was originally titled Yu-Gi-Oh! Duel Monsters in Japan, and was the semi-sequel to the unsuccessful anime Yu-Gi-Oh!, produced by an entirely different company and adapting the manga from the beginning up to the Pegasus arc. That series, which never made it to English-speaking shores, is referred to as "Season 0" by Western fans.
The second series of the Ah! My Goddess TV Series was dubbed "Ah! My Goddess: Sorezore no Tsubasa" ("Many Wings"); the English subtitle is Flights of Fancy. The third OVA was subtitled Tatakau Tsubasa, or "Fighting Wings", and was never released outside of Japan.
The various .hack installments have suffixed names as well; none of them are exempt from this, because the first few (tasogare no udewa densetsu, SIGN and the first games) ran at the same time, so there is no true "original".
The Mai-Otome OVA sequel was named Mai-Otome Zwei, the most obvious rationale for which is because "zwei" (German for two) starts with a Z, allowing the logo designers to superimpose it with the Z-like kanji (乙) in the original title. An oddly named prequel has also been announced, alternatively titled Mai-Otome 0, S.ifl, or S.ifr ("sifr" being Arabic for zero).
In fact, Mai-Otome itself qualifies despite not strictly being a sequel, if the original Japanese titles for Mai-HiME and Mai-Otome are compared (舞-HiME and 舞-乙HiME, respectively).
Likewise for the manga versions of Tenchi Muyo! and Shin Tenchi Muyo (New Tenchi Muyo), released in English as "All-New" Tenchi Muyo. This is not to be confused with the anime versions, which are Tenchi Muyo! Ryo-Ohki, Tenchi Muyo TV (or Tenchi Universe in the US) and a completely-unrelated-to-the-manga Shin Tenchi Muyo (which is Tenchi in Tokyo in the US).
The first season of Ranma ˝ was technically a separate show from seasons two through seven which was called Ranma 1/2: Nettohen.
The Naruto anime after the time skip has the new name Naruto Shippuden (roughly translated: Hurricane Chronicles), even though there was no break between the original series in Japan and this one (as opposed to the manga where it was just Naruto: Part 2). Was mostly likely done to notify that the 85 filler episodes were over.
The second half of the Sorcerer Hunters anime was initially released by ADV Films as "Spell Wars" and marketed as a separate sequel series; both halves were released as a single series on DVD.
Ojamajo Doremi was renewed four times, and the following seasons were called Ojamajo Doremi # (Sharp), Mo~tto! Ojamajo Doremi, Ojamajo Doremi Dokkan! and Ojamajo Doremi Naisho, respectively.
The Minami-ke anime was followed by a sequel series called Minami-ke: Okawari (literally meaning "Seconds") immediately after. A third season, Minami-ke: Okaeri ("Welcome Home"; it's what people in Japan say when someone else comes home) followed a year after that. Most recently, there was an OVA called Minami-ke: Betsubara ("second stomach", an idiom used for someone who can eat dessert even after a huge meal). The fourth season is called Minami-ke: Tadaima ("We're Home"; it's what Japanese people say when they themselves return home). Confused yet?
Tokyo Mew Mew a la Mode where "a la mode" is supposedly used in the sense "with ice-cream" and refers to the signature color of the new team leader.
The manga Gensoumaden Saiyuki became Saiyuki Reload when it switched magazines; the anime also included this distinction, as the second anime series was produced quite some time after the first one ended, and the animation and artwork styles between the two are noticeably different. The anime then took this a step further, by producing the final season as Saiyuki Reload GUNLOCK. There's also the movie Saiyuki Requiem, and the OAV, Saiyuki Reload -burial-.
Sayonara, Zetsubou-Sensei was quickly followed by a second season, with the full title (Zoku:) Sayonara Zetsubou Sensei, where Zoku is a dictionary term used to designate slang words and vulgarities, but is also a pun on the word for "continuation". Then there's the OVA, Goku: Sayonara Zetsubou Sensei, where Goku means "prison." And a third season, Zan this time.
The anime is notable for the fact it gets a new subtitle every season starting with season 3 in the dub version. The original Japanese series has only changed its name, twice. Pocket Monsters added the subtitle Advanced Generation when it began the storyline based on the Pokémon games released for the Game Boy Advance. The subtitle then changed to Diamond & Pearl when the storyline became based on said games, although it adapted elements of Platinum and the DS remakes of the Gold and Silver games as well. The adaptation for Pokémon Black and White takes the cake, though, for being subtitled Best Wishes!.
The original Pocket Monsters was dubbed as Pokémon for two seasons, then was subtitled with The Johto Journeys, Johto League Champions and finally Master Quest, one season each.
The seasons based on Pocket Monsters Advanced Generation was subtitled Advanced, Advanced Challenge, Advanced Battle, and Battle Frontier
The seasons based on Pocket Monsters Diamond & Pearl is subtitled as Diamond and Pearl, Diamond and Pearl Battle Dimension, Diamond and Pearl Galactic Battles, and Diamond and Pearl Sinnoh League Victors
Currently, Pocket Monsters Best Wishes! is dubbed as Pokémon Black and White.
Pokémon Black and White: Rival Destinies (season 15) and Pokémon Black and White: Adventures In Unova and Beyond (season 16).
The DVD releases have remedied the problem for the first two seasons: season 1 is now "Indigo League" and season 2 is now "Adventures on the Orange Islands."
Similarly, the Pretty Cure All Stars series is like this. The original five-minute short was just called "Pretty Cure All Stars". When it became a movie franchise, it became "Pretty Cure All Stars DX". When they rebooted the franchise, it became "Pretty Cure All Stars New Stage".
Shugo Chara!, on the other hand, went with Shugo Chara Doki. "Doki" is the Japanese word for a heartbeat sound.
Also, Shugo Chara Party
Zero no Tsukaima titled its follow-up seasons Knight of the Twin Moons and The Princess' Rondo. "Rondo" being a musical movement that repeats a key idea three times.
Hell Girl has two follow-up seasons, each with a title incorporating its number.
Season 2 is Hell Girl: Futakomori. This means something like "The Two Prisoners", but there's no consensus on which two are intended. They could be Ai and Kikuri, who are both used by the King of Hell; or they could be Ai's parents, whose souls are held hostage to keep Ai working; or they could be "the hater and the hated", a duality that's emphasized in the intro. We don't know.
Season 3 is Hell Girl: Mitsuganae, which means "Cauldron of Three". Wanyuudou explains this one for us halfway through. "Hatred, suffering, and envy: like legs of a cauldron, they say these become a support for people's hearts." (Kikuri protests, "They don't say that!")
The New Lupin III manga was released in English as Lupin III: World's Most Wanted, and was then promptly cancelled halfway through its run.
The second and third Lupin III TV series were released in Japan as New Lupin III and Lupin III: Part III. Since the first series was never released anywhere outside the country (except for Italy), when most people are talking about "Lupin III", they mean the second series. The US DVD release acknowledges that it's not the first Lupin series, but none of the animation does. To clarify which series is which, TV Tropes uses the Fan Nickname for the original three series, which identifies the colour of the sports jacket Lupin primarily wears. (Green, Red, and Pink)
SHUFFLE! and SHUFFLE! Memories, though most fans discardMemories as a sequel because episodes 1-11 were merely thematic recaps of each character's relationship with Rin a la To Heart 2, with episode 12 being the only episode having original material.
The Japanese name of the second anime adaptation of Fullmetal Alchemist is Hagane no Renkinjutsushi: Fullmetal Alchemist. They used the English name for the first series as a subtitle for second one. Obviously this would make no sense in English, so it was christened Fullmetal Alchemist: Brotherhood.
Which makes even less sense considering that the 2003 animeOvertook the Manga and went off on its own tangent about 1/3rd of the way through, and yet carries the same name as the manga, whilst the sequel is based entirely from the manga storyline, but has a different name. Hmm...
The second season of Himawari! was differentiated from the first season with the addition of a second exclamation point.
Bakugan started out with the name Bakugan Battle Brawlers for two seasons, then followed it up with a third season called Bakugan: New Vestroia, then a fourth season called Bakugan: Gundalian Invaders and a fifth called Bakugan: Mechtanium Surge.
In Japan, the 1985 Vampire Hunter D film was known as Kyuuketsuki Hunter D. When they released a second film 15 years later, they simply titled it Vampire Hunter D in Japan. To avoid confusion, the second film was retitled Vampire Hunter D: Bloodlust for its English release.
In Japan, the 2nd film is referred to as Vampire Hunter D: The Movie, as it was released theatrically. The first Vampire Hunter D was an OVA.
After the TV series ended, Future GPX Cyber Formula has four OVA sequels: 11 (pronounced "Double One" instead of "Eleven") Zero, Saga and Sin. For example, 11 refers to Asurada's upgrade to the even more powerful Super Asurada AKF-11 and the title for 2 consecutive championship wins, and Zero refers to the Super Mode.
And in 2012, Evangelion 3.0: You Can (Not) Redo. The aptly-named finale, Evangelion: Final, is set to be released in 2015.
Which is now, in fact, named Evangelion 3.0+10 
At the end of the DVD Commentary for The End Of Evangelion, Taliesin Jaffe and Jason C. Lee joke about the (un)likelihood of Eva 2: Electric Boogaloo, which now that the Rebuild films and in particular the increasingly popular "sequel theory" exist is particularly Hilarious in Hindsight.
Although not another season, Tsubasa Chronicle had two sets of OAVs released. The first was titled Tsubasa TOKYO REVELATIONS, and the second was Tsubasa Shunraiki. Other than to differentiate them from the original animated series another production company had been given the rights to Tsubasa after CLAMP was displeased with Bee Train's work on the television series.
Macross Frontier is also something of an in universe example. The New Macross Class long range colony fleets are numbered at least up to eleven (this is where Macross 7 gets its title) but at some point after that they start naming them, hence the twenty-fifth fleet is the titular Macross Frontier Colony Fleet, rather than the Macross 25.
The Gatekeepers sequel series is named Gatekeepers 21. The story occurs in the 21st century as opposed to the main story, which occurred during 1969.
JoJo's Bizarre Adventure's story is split into several parts, with each one given a very Electric Boogaloo-ish title. Starting from the beginning we have: Phantom Blood, Battle Tendency, Stardust Crusaders, Diamond is Unbreakable, Vento Aureo, Stone Ocean, Steel Ball Run, and Jojolion.
Sailor Moon: Seasons 2 through 5 are titled Sailor Moon R (nobody can agree what this stands for the popular choices are either 'Romance' or 'Returns'), Sailor Moon S (Super), Sailor Moon SuperS (i.e. nultiple supers), and Sailor Moon Sailor Stars. Also it's not official but many fans call the original series Sailor Moon Classic.
The new anime series coming in 2014 has been named Sailor Moon Crystal. We can only speculate happily on what, if any, sequels will be named after that gem.
Similarly, Little Busters!'s second season is named 'Little Busters ~ Refrain'. Which makes even less sense as nothing in the anime has anything to do with music or any other definition of refrain. There is, however, a symbolic meaning in that a refrain is a verse that repeats through a song, and Refrain is when it's made clear that the characters have been caught in a repeating time loop.
The second season of Haiyore! Nyarko-san is called Haiyore! Nyarko-San W in yet another of the series' many tokusatsu references (this time to Kamen Rider W). The precursor flash series also used this trope, with Haiyoru! Nyarani followed by Haiyoru! Nyarani Remember my Love(craft-sensei).
The second season of Working is called WORKING'!!note Which would be pronounced "WORKING DASH!!"
Magic: The Gathering publishes "Core Sets," collections which provide a foundation of basic cards for players to build off of. These Core Sets were called "Limited," "Unlimited" (which went out of print relatively quickly), "Revised," then switched to numbers (4th Edition - 10th Edition), and then switched to model years ('10, '11, etc). Just to add to the confusion, there is both a 10th edition and a Magic 2010 (though at least one uses the Roman numeral X as its symbol, the other a stylized "M10" icon).
The Eyeball Kid miniseries by Eddie Campbell was later subsumed into its spin-off, Bacchus.
The miniseries Kev was followed by More Kev, The Magnificent Kevin and, finally, A Man Named Kev.
The earliest Tintin albums went: Tintin in the Land of the Soviets, Tintin in the Congo, Tintin in America and... Cigars of the Pharaoh. From that point on, though, the "Tintin in Geographic Location" formula was discarded for many years until Tintin in Tibet.
The An American Tail sequels did this. An American Tail: Fievel Goes West wasn't such a bad title, the later direct-to-video titles became just a little too long; An American Tail: The Treasure of Manhattan Island and An American Tail: The Mystery of the Night Monster.
Films — Live-Action
The Rambo series: First Blood, Rambo: First Blood Part II, Rambo III, and Rambo. Yes, in that order. In Brazil, the second film is called Rambo II - A Missăo. Since then, "A Missăo" ("The Mission") has become the Brazilian equivalent of "Electric Boogaloo."
The first five Rocky sequels are numbered. The sixth is simply titled Rocky Balboa.
The 2009 film is just called Star Trek with no qualifier or subtitle, because it takes place in a different continuity. Its sequel is called Star Trek Into Darkness, with no colon (meaning it's pronounced Star Trek Into Darkness — that's an awkward title on its own right).
On the early theatrical prints, the second movie's opening title said simply "Star Trek: The Wrath of Khan", presumably to help people forget the first film. The "II" was added later in the theatrical run (though the film was promoted as "Star Trek II" from fairly early on).
Curiously, for several years the only print of the fourth movie doing the rounds in the UK had the title card The Voyage Home: Star Trek IV, although no-one actually called it that.
The Next Gen films don't continue the numbering to differentiate between their films and the original cast (and also, one suspects, because the numbering was getting a bit high). However, DVD releases from around the time the 2009 movie came out inserted the numerals VII through X into the titles.
This has been taken to the point of absurdity with The Fast and the Furious film franchise, in which no two movies use the same numbering system. The series goes The Fast and the Furious, 2 Fast 2 Furious, The Fast and the Furious: Tokyo Drift, Fast & Furious, Fast Five (known as Fast & Furious 5 in the UK) and Fast & Furious 6. And cycle continues with the upcoming seventh movie titled Furious 7.
Just to confuse things further, every film between Tokyo Drift and Furious 7 are Midquels chronologically fitting between 2 Fast and Tokyo Drift, and the main characters are inconsistent across the series as well.
Another Vin Diesel series, The Chronicles of Riddick, has somewhat different issues. It all started with the 2000 film Pitch Black. This was followed by a sequel called The Chronicles of Riddick in 2004 and an accompanying video game and animated special subtitled Escape from Butcher Bay and Dark Fury, respectively. A second video game subtitled Assault on Dark Athena was released in 2009. All other entries aside from the second film at least style themselves as "The Chronicles of Riddick: Title of Entry", even Pitch Black retroactively. This is set to be followed by a third theatrical film in 2013 simply called Riddick. Word is still out on how this will play out, since it has also been called The Chronicles of Riddick: Dead Man Stalking by the creators.
Pičge de cristalnote Crystal Trap, 58 minutes pour vivrenote 58 Minutes (in order) To Live, and Une journée en enfernote A Day In Hell — and going the Colon Cancer way with Die Hard 4: Retour en enfernote Return to Hell.
The Spanish version was specially stupid; the first film was called "La Jungla de Cristal" (The Glass Jungle). Of course, the second one is "La Jungla de Cristal 2", and the third one "La Jungla de Cristal 3"... even if the original name was derived from it taking place in a skyscraper. The fourth film bettered it by removing the "glass" part of it and was called "La Jungla 4.0", and the second and third films' names were retranslated as simply "La Jungla 2" and "La Jungla 3" (with the relevant sub-titles) in DVD releases.
The American Pie films: American Pie, American Pie 2 ... then American Wedding.
Although the international release was called American Pie: The Wedding.
The subsequent direct-to-DVD films then went back to the original Pie name but replaced the numbers with subtitles (American Pie Presents: Band Camp, American Pie Presents: The Naked Mile and American Pie Presents: Beta House).
And now going back to the original cast with American Reunion. (Which was retitled American Pie: Reunion in the international release.)
After two numbered sequels, the fourth Final Destination movie - in somewhat of a similar vein to what happened to The Fast And The Furious series is called The Final Destination. And yes, it's not a Remake/Reboot either. The following film, Final Destination 5, went back to numbering.
To further confuse things Final Destination 5 (originally titled F5nal destination) was a prequel, ending with the crash of flight 180 in the first film, you even get to see the main characters of the first film as they leave the plane.
The original Pink Panther films never used numbers. The first three films all had completely separate titles (The Pink Panther, A Shot in the Dark and Inspector Clouseau). Then the fourth film (Return of the Pink Panther) reintroduced the Pink Panther diamond, and after that all the sequels worked the phrase "Pink Panther" into their titles even when the actual Pink Panther diamond didn't figure in their plots. Then the Continuity Reboot with Steve Martin started numbering its sequels, with no subtitle. Keeping all nine films in order can be tricky.
The Mummy Returns spawned a prequel: The Scorpion King, which in turn spawned a prequel of its own (and soon yet another sequel).
The full title of the first The Naked Gun movie is The Naked Gun: From the Files of Police Squad!, to identify it as a TV-movie spin-off. The sequels were numbered "2˝: The Smell of Fear" and "33⅓: The Final Insult," spoofing both this and Numbered Sequels (which led to The Angry Video Game Nerd jokingly wondering how the second film incorporates half the plot from the third, and where the other 31 Naked Gun movies can be found).
Subsequent to the release of Naked Gun 33⅓: The Final Insult, long before speculation of a continuation gave way to the concept of the inevitable reboot, the unmade fourth installment was tentatively titled "Naked Gun 5."
Also bandied about - "Naked Gun 4 Score: And 3 Sequels Ago". Now sadly impossible due to Leslie Nielsen's death.
Hot Shots was followed by Hot Shots, Part Deux. Note that the announcer in the trailers specifically pronounced that "Deux" the way many English speakers trying to speak French would: "Duh".
Upon its release in 1977, Star Wars was called simply that. Its first sequel was titled Episode V: The Empire Strikes Back, and a re-release (in 1981) of the original retroactively added the subtitle Episode IV: A New Hope. This was all decades before Lucas got around to making the Prequel Trilogy. (Note that none of these movies were referred to by episode number anywhere but the opening crawl until the prequels came out.)This was due to Early Installment Weirdness, because the series was supposed to be called "The Adventures of Luke Skywalker" for a while, as the complete title of the first movie's novelization was Star Wars: From the Adventures of Luke Skywalker.
This always leads into Title Confusion when trying to mention one of the movies not by subtitle or number. For example, the "first Star Wars movie" is either Episode I or Episode IV.
The "Thin Man" referred to in the title of the Dashiell Hammett novel and William Powell-Myrna Loy screwball comedy-mystery film The Thin Man was actually a missing person that Nick Charles was retained to find, and turns out to be the victim of the murder Nick and Nora wind up solving. For some reason, audiences started associating "the Thin Man" with Nick Charles (note that Nick isn't thin at all in the book, while William Powell was quite thin indeed), and the Thin Man sequels pretty much gave in to this and became references to the erroneous "Nick Charles" = "Thin Man" equation. This is most obvious in the fifth movie in the series, The Thin Man Goes Home, in which Nick Charles returned to his boyhood home to visit his parents (and, of course, managed during that visit to get involved in a murder case).
Apparently, deciding to make a sequel to Cube wasn't silly enough. They had to call the sequel Cube 2: Hypercube. Which is surprisingly a real geometric object, not something the creators just made up because it sounded cool, although that certainly factored into picking the title. The third movie was called Cube Zero.
This happened to Jackie Chan films in the USA a lot, because they were originally released only on home video here, where they were underground cult favorites, but not part of mainstream culture. Then his film Rumble in the Bronx was released theatrically and became a hit, so many of his earlier films got re-released on video or finally given a theatrical release. However, several of his films were part of long-running series, the earlier films typically had cheap sets and special effects, were shot on poor-quality film stock, and/or were not originally written with worldwide release in mind, and so the studios and distributors didn't think American audiences would understand the Chinese cultural concepts. So the later films in those series, which had better production values and more universal appeal, got theatrical releases under new titles, with the earlier films re-released on home video... retitled as if they were follow-on sequels to the later films that got theatrically-released first here in the states.
Armor of God 2: Operation Condor was released theatrically in the US first, so it was re-titled Operation Condor. When that did well, the earlier film in the series was retitled from Armor of God to Operation Condor 2: The Armor of the Gods.
Police Story 3: Supercop was similarly released theatrically as simply Supercop, leading to the several other films in the series being re-titled "Supercop 2" through Supercop 5 for home video releases.
Drunken Master 2 was retitled Legend of the Drunken Master when released in the US. You could be forgiven for thinking there wasn't a Drunken Master 1, given that nobody these days really associates Jackie Chan with his earliest fare.
The Godzilla series has a fairly consistent Godzilla vs. Whatever or Whatever vs. Godzilla formula, but strange titles pop up from time to time. In Japan, there are two films called Godzilla, one of which is the original and the other of which is its direct sequel that erases the movies that came in between. Also, some of the later movies replaced the "vs." in the titles with an "X" for no apparent reason.
Before they settled on the "Vs." format, though, the filmmakers got somewhat...creative...with the titles. The fifth film, Ghidorah The Three Headed Monster dropped Godzilla from the title entirely, and the international titles for 3 of the next 4 films didn't reference Godzilla at all (Son of Godzilla, the 8th film, being the exception).
Surprisingly averted for almost the entire run of the Saw series, which were simply consistently numbered with successive roman numerals and no subtitles. The filmmakers explicitly noted that they were not going with sequel names like Saw 2: Hacksaw or S4w to avoid this. This lasted until the seventh film, which instead of being Saw VII is Saw 3D. The DVD release has renamed it Saw: The Final Chapter.
Almost played straight with TRON's sequel, TRON: Legacy, which was originally going to be called TR2N. How it was supposed to be pronounced is anyone's guess.
Gradually happened with Leprechaun. There's Leprechaun, followed by Leprechaun 2 and Leprechaun 3, then introducing subtitles with Leprechaun 4: In Space, followed by dropping the number for Leprechaun: In The Hood and ending with Leprechaun: Back 2 Da Hood by mimicking 2 Fast 2 Furious's ridiculous title.
Truth or Dare?: A Critical Madness was followed Wicked Games, Screaming for Sanity: Truth or Dare 3 and Deadly Dares: Truth or Dare Part IV.
The fifth Paranormal Activity movie, the "Latino Spin-Off" set in Oxnard, California is called Paranormal Activity: The Marked Ones. Originally it was to be titled The Oxnard Tapes, with no mention of the Paranormal Activity name. The next film, Paranormal Activity: The Ghost Dimension will be released in March 2015.
The Left Behind film series of 2000-2005 had Left Behind: The Movie, Left Behind II: Tribulation Force,...and Left Behind: World At War, justified in that case since World At War was simply the Movie Multipack second half of Left Behind II, both of which covered the second book.
The Haunting in Connecticut 2: Ghosts of Georgia. Maybe the ghosts took a road trip...?
"Tetsuo: The Iron Man" was followed by Tetsuo II: Body Hammer, reflecting the Adjective Noun style of sequel naming.
Each season of Babylon 5 has its own subtitle: 'Signs and Portents', 'The Coming of Shadows', 'Point of No Return', 'No Surrender, No Retreat' and 'The Wheel of Fire'. However, this subtitle does not appear in the credits and was strictly informal until the DVD releases, when the subtitle was included on the front cover packaging.
The season titles were also the titles of the most significant episodes in that season, which did appear on screen. (Thus Season I was named Signs and Portents after the episode that introduced Morden and really kicked off the Myth Arc, and so on.)
Ashes to Ashes is a sequel series to Life On Mars set in London, eight years later. Both are David Bowie song titles. The ironic thing is that the song "Ashes to Ashes" is a sequel to the song "Space Oddity," which is not the name of a TV show. Yet.
The British musical comedy/drama series Blackpool had a two-part sequel, Viva Blackpool. The original Blackpool series was called Viva Blackpool for US distribution.
Grace and Favour, the short-lived sequel series to Are You Being Served?, was marketed in the U.S. as Are You Being Served? Again! Some believe that this is due to Viewers Are Morons, but others argue that if it were more clearly identified as a sequel to Are You Being Served?, it might not have been short-lived.
Well, it would still have been as short-lived, but you may be right in the sense that it may have been more popular. Billy Burden (Mr. Moulterd) died just after the series ended.
Parodied by the Portuguese comedy show Paraíso Filmes, about a Toilet shop/Movie studio (no that's not a typo) where the plot of every episode revolves around shooting a Z grade movie. In one episode they shoot their newest production, a ninja movie entitled "The Return of the Vengeance of the Red Dragon 6"
Terry Pratchett's second book, The Light Fantastic, was originally subtitled "The Sequel to The Colour of Magic" in its UK print. As Pratchett became more prolific, it was changed to "A Sequel to The Colour of Magic" and, later, "A Discworld Novel."
Similar to the Discworld example, the Dresden Files books were labelled "Book n of the Dresden Files" for about the first six books. Since Dead Beat, the seventh installment, they've been "A novel of the Dresden Files".
Narrator: Nothing was happening. Still nothing was happening. Another Nothing. The Return Of Nothing. Son Of Nothing. Nothing Strikes Back. Nothing, Abbott and Costello Meets The Werewolf.
The Thursday Next series contains 7 books to date, with no discernible naming convention. The fifth one is called "First among Sequels"
The first three LPs released by Led Zeppelin were called simply Led Zeppelin, Led Zeppelin II and Led Zeppelin III. Their fourth album, which has No Title aside from a sequence of unpronounceable symbols, is informally referred to as Led Zeppelin IV in keeping with this pattern.
The fourth album is also sometimes called "Zoso" due to the fourth unpronounceable symbol looking vaguely like that word.
Early in their career, Franz Ferdinand had intended to title all their albums simply Franz Ferdinand, and differentiate them only by their cover art. Their producer talked them out of the idea.
Their second album, You Could Have It So Much Better, was originally going to be called You Could Have It So Much Better...with Franz Ferdinand, which is a much better title. Specially as the third had the band in its title (Tonight: Franz Ferdinand).
Similarly, Weezer currently has three (out of six) self-titled albums. They're identified by the colors of the cover: blue, green, and red.
Peter Gabriel's first four solo albums were all named Peter Gabriel. To avoid insanity, they've since been given nicknames based on their covers: Car, Scratch, Melt, and Security.
Gabriel said he wanted each cover to look like the next issue of a magazine (thus the identical typeface/layout on those four LPs). His American label regarded this as a marketing nightmare. As a minor concession, Gabriel agreed to allow a sticker reading "Security" to appear on the shrinkwrap of the fourth: a disposable title. The label then unilaterally decided to put the "title" on the spine, the record's label, etc. (Some reissues have conformed with the artist's original intentions.) BTW how would the title "Security" correspond to the cover art (a video capture of...something)?
Fleetwood Mac released two self-titled albums - one during the years when Peter Green was the frontman, and another during their decidedly more successful Buckingham-Nicks years.
The Soviettes subvert the usual practice of bands naming their albums with actual titles, and made LP I, LP II and LP III.
Portending at least a six-album career, these Minnesotans strove to create a "rainbow" of album art. LP I sported a red scheme, LP II featured orange, and LP III was yellow. Theoretically, LPs IV-VI would have been green-, blue- and violet-themed (indigo having been stricken from the spectrum long ago). This was confirmed both in an interview and in the fact that the band's post-career online-only release, Rarities, had the green color scheme LP IV would have had.
His third self-titled album (but fourth album) is called Seal IV.
The supergroup Traveling Wilburys first album was called simply Volume One; their second and final album was named, of course, Volume Three.
Volume One was given this name for deliberately ironic reasons; i.e., the unlikelihood of there ever being a Volume Two. Of course, when a new album was in the works, that would have ruined the joke, so they had to give it an equally ironic title.
In the late Nineties, George Harrison said that if there was ever another Wilburys album, it would be called "Volume Five."
Spoiling the joke somewhat, a Russian label put out Tom Petty's "Full Moon Fever" as "The Traveling Wilburys, Volume Two." This actually works - the album was released between Volumes One and Three, and has Harrison, Orbison and Lynne making appearances.
She & Him titled their first album Volume One in tribute to Traveling Wilburys. However, in their distinctly non-ironic style, they decided to call the next album Volume Two.
They Might Be Giants' self-titled debut album has been nicknamed "The Pink Album" because of its cover art. And as a Beatles reference.
And to differentiate it from the band's widely-known 1985 demo, which was also titled "They Might Be Giants."
Coheed and Cambria's entire discography thus far is full of this. In order: The Second Stage Turbine Blade, In Keeping Secrets of Silent Earth: 3, Good Apollo I'm Burning Star IV, Vol. 1: From Fear Through the Eyes of Madness, Good Apollo I'm Burning Star IV, Vol. 2: No World for Tomorrow, and Year of the Black Rainbow. There is an explanation for all this: Their whole discography is basically one long Concept Album broken up into parts, and they started with "two" because they intended from the beginning to eventually make a prequel album. Year of the Black Rainbow is that prequel album, and while it broke with the chronological album titles altogether, the first track is titled "One".
Chicago has subverted this numerous times, making album titles with nothing but roman numerals. They're up to XXXII; that includes the greatest hits but DOESN'T include a few non-numbered releases like "Live in Japan" so they really have closer to 40 releases over the years.
Killswitch Engage's second self-titled release was known among fans as Killswitch Engage II even while the title was just rumored.
Metallica's 1996 album Load was followed the next year with ReLoad.
The Beastie Boys latest album is called "Hot Sauce Committee Part 2". There is no "Part One", though there was supposed to be. Supposedly the boys were busy making "Part One" when MCA was diagnosed with cancer, thus the album was delayed. Part 2 was released because the boys said they were going to release it on a certain date, so it kind of makes "Part One" a case of "The Missing Floppies".
Also boasting two self-titled albums is the band Rancid. The first was released in 1993, the second in 2000.
Periphery followed up their self-titled debut album with Periphery II: This Time It's Personal.
Vol. 3: The Subliminal Verses by SlipKnot is actually the band's fourth. SlipKnot is their second. Their first was a limited, self-issued album called Mate, Feed, Kill, Repeat, released in 1996.
The Cure's list of albums are not numbered (though Robert Smith tried to claim at least three were a trilogy). However, it took over twenty years and twelve albums for them to finally have an album called....The Cure. It was not quite fittingly their last one, only second to last, as of 2013; the last (as of now) is 4:13 Dream.
Korn's 2010 album release was named "Korn III: Remember Who You Are" despite being the band's 9th album. The reason for this name was because the band wanted to return to their mid 90s Nu Metal roots (and retroactively saying that their second album, "Life is Peachy," is now considered "Korn II") after going through years of experimentation that caused some older fans to drop off (their previous attempts at trying to draw back older fans, including an album that actually has no official name, yielded mixed results).
Meatloaf had a classic album titled "Bat Out Of Hell" after one of its songs. Decades later, he released the sequel album, "Bat Out of Hell II: Back into Hell" and third, "Bat Out of Hell III: The Monster is Loose."
In 1985, the World Wrestling Federation held a pay-per-view called WrestleMania. Since then, they've bounced back and forth in number conventions for each year's edition of the show. Each show name, in order:
After the name-change to World Wrestling Entertainment, they had WWE WrestleMania XIX, XX, 21, 22, 23, XXIV, "WWE 25th Anniversary of WrestleMania" (aka XXV), XXVI, XXVII, XXVIII, 29 (aka "NY NJ"), and XXX.
In 2005, WWE held an Extreme Championship Wrestling reunion event called ECW One Night Stand. The event was held again the next year under the same name as the first show of the newly-relaunched ECW brand. The year after that, WWE decided to drop the ECW-exclusive nature of the event, and it became WWE One Night Stand. Two years later, it was again renamed WWE Extreme Rules.
Every year from 2001 to 2006, WWE held an event called "Vengeance." The 2007 edition was called "Vengeance: Night of Champions," and for 2008 through 2010, the show was just "Night of Champions." To confuse matters further, 2011 saw both "Night of Champions" and "Vengeance."
When WCW ran a motorcycle-themed pay-per-view in 1997 called Hog Wild, they ran afoul of a Harley Davidson group which owned that name. All subsequent editions of the show were called Road Wild.
WWE's "interactive pay-per-view" event (where viewers could vote on elements of the matches) was originally branded as "Taboo Tuesday" (unusually happening, as per the title, on a Tuesday; presumably simply for the alliterative potential). This lasted for two years until 2006, when the event was shifted to the more sensible Sunday and rebranded "Cyber Sunday" until it went defunct after 2008. As the original title made no reference to being related to Internet voting whatsoever (adding more credence to the notion that it was chosen just because it started with the same letter as "Tuesday"), this may be an inversion (as the later sequels were sensibly named).
Due to a disagreement between the game's two creators, Dungeons & Dragons was split into two games, a stripped-down version also called Dungeons & Dragons, and an expanded version called Advanced Dungeons & Dragons. This was later revised into Advanced Dungeons & Dragons 2nd Edition, while the second Dungeons & Dragons was still being published in parallel. Then the publisher folded and the rights were bought by Wizards of the Coast, who unified the two lines as Dungeons & Dragons 3rd Edition. So is this the 3rd edition of Dungeons & Dragons, which incorporated a bunch of concepts from Advanced Dungeons & Dragons? Or is it the 3rd edition of Advanced Dungeons & Dragons, making it the 4th edition in order (since the original AD&D was a sequel to the original D&D, with the second version of D&D as a Gaiden Game).
Then they followed 3rd Edition with a minor rewrite called Dungeons & Dragons 3.5, which was not so much "confusing" as "stupid" naming.
The current edition has returned to whole numbers, with a very revised rules system released as the 4th Edition. Meanwhile, former publishing partner Paizo has taken the style of D&D's 3rd Edition and 3.5 rules and slightly revised it into a system they call Pathfinder; the deliberate similarities have earned Pathfinder the nickname "D&D 3.75", especially among players who disdain the alterations made for 4th Edition D&D.
Rolemaster was followed by Rolemaster Standard System, which split the fandom to the point that the publisher re-released the original as Rolemaster Classic, at the same time renaming the Standard System to Rolemaster Fantasy Roleplaying. They also released a stripped-down set of light rules as Rolemaster Express, after creating a completely different and incompatible stripped-down, simplified game as HARP.
Paranoia has had (in order) 1st edition, 2nd edition, 5th edition (later declared an "unproduct", 3rd edition (unpublished), XP (formally dropped after Microsoft complained, so this version was just called "Paranoia"), and 25th Anniversary Edition (a reprint of XP with some additional material).
In the interest of fairness, 5th edition was an intentional spoof of this very trope.
The editions of Traveller are, in direct line: Traveller, MegaTraveller, Traveller: The New Era, Marc Millar's Traveller, Traveller, Traveller 5. Note that Traveller 5 is the 6th. A completely unrelated science fiction game from the same company was released as Traveller: 2300 - it's actually a sequel to Twilight: 2000. This also doesn't count the ports of the setting to generic rules systems: GURPS Traveller, Traveller 20 and Traveller HERO.
Parodied in thissinfest strip: "Reloaded Full Throttle with a Vengeance"!
Parodied in thisHark! A Vagrant. Kate Beaton apparently wants "The Legend of Curly's Gold" to be the next "Electric Boogaloo".
I present to you: Ensign 2: Electric Sue-galoo. The final product was titled (probably more appropriate to the subject matter) Ensign Two: The Wrath of Sue, the former was only used as a promotional image. And the announced third part will be titled Ensignł: Crisis of Infinite Sues (yes, not 3, cubed).
Homestar Runner's parody of such trends was Dangeresque 2: This Time, It's Not Dangeresque 1
And Dangeresque 3: The Criminal Projective, which was released as part of Strong Bad's Cool Game for Attractive People. Not forgetting the original, which was titled Dangeresque 1: Dangeresque, Too? and the prequel Dangeresque 0: The Prequel Begins.
Chaos Fighters has a few novels with such titles. Chaos Fighters II is a major offender with subtitles Cyberion Strike and its sequel Chemical Siege. However, it helps that the former is the name of the final attack launched by the big bad of the novel while the latter refers to the chemical hollows which pollutes the city of Murio. Both titles are set as a Time Skip to the main series.
In an OOC Q&A, Jadusable replied to a question asking about the name of the movie he's filming with "ben 2: electric boogaloo." Here is a transcript of that Q&A if you want it.
The Darwin's Soldiers short story Card of Ten is supposed to have a sequel. The sequel is named Ship of State.
Ashen reviewed a garbage game called Oriental Hero on his Terrible Old Games You've Probably Never Heard Of segment and pointed out that the title had nothing to do with the game's forerunner Ninja Master (and indeed, they are very different games from one another).
The sequel to Avatar: The Last Airbender was going to be called The Last Airbender: The Legend of Korra. Not only did it make no sense whatsoever because Korra isn't the last Airbender (she's not even a native airbender), it's a mouthful. Stranger yet, it was originally going to be called Avatar: The Legend of Korra (which would have made a lot more sense), but they had to change it due to legal issues with a certain movie. Prior to release, it was shortened down to simply The Legend of Korra.
In the UK the original show was always known as Avatar: The Legend of Aang (probably to avoid using the word "bender" which has...implications in the UK) so the sequel series being called The Legend of Korra fits very well.
Happened to The Transformers in Japan; while Headmasters had sense, there's no excuse for Super-God Masterforce or Victory. They did this very often, spawning no less than fourteen differently named series (not all televised, or even given fiction at all; Operation Combination is a toyline only, for example.) in Japan, though "only" seven in English-speaking countries.
Played for laughs in Danny Phantom. When the family temporarily get filthy rich, they move. Jack wants to call their new home "Fenton Works 2: This Time, it's Personal".
Total Drama Island's second season was called Total Drama Action (shift to movie-themed challenges on an abandoned film lot) and the third season was named Total Drama World Tour (traveling the world and spoofing musicals). Season four will be titled Total Drama Revenge of the Island (original location, different cast).
Originally named Aqua Teen Hunger Force for no particular reason, the show was 'rebooted' (to exactly the same thing) and renamed Aqua Unit Patrol Squad 1, then 're-rebooted' (to exactly the same thing again) and renamed Aqua Something You Know Whatever. And then again to Aqua TV Show Show. The only real change is the opening credits.
Windows NT started at version 3.1, to coincide with Windows 3.1.
Microsoft Windows 7 is an oddly numbered release. Since Windows 3.x, Microsoft abandoned the numbering system but released more than four iterations of Windows, including Windows 95, NT, 98, 2000, Millennium Edition, XP, Server 2003, Vista before returning to the numbering system with Windows 7. Even if we are selective in which editions we count as actual significant releases, the latest Windows should still be higher than the 7th major release.
Windows 95, 98, and ME were all technically the same operating system. 98 and ME just being feature added versions (95 = 4.0, 98=4.10, ME = 4.90). Also, NT isn't a single release. NT 4.0 was concurrent with Win95. Windows 2000 is NT 5.0. XP is NT 5.1. Server 2003 is 5.2. Vista is NT 6.0. Windows 7 is NT 6.1. None of this is clear from the labelling, as the release names are driven by Marketing and not technical concerns. Still counts as Oddly Named Sequels of course.
It has got weirder with the 8.x versions. Windows 8 is actually NT 6.2, and the recently released Windows 8.1 is NT 6.3. Logic would dictate that Windows 8 should be NT 7, and Win 8.1 be NT 7.1. Instead, the kernel is now suffering from Capcom Sequel Stagnation.
Microsoft have recently announced that Windows 8.1 would now be followed by Windows 10, thus bypassing 9 altogether. This was actually done somewhat pragmatically to avoid conflicts with legacy programs designed for older versions that would identify 95 and 98 with strings such as if(version.StartsWith("Windows9")). The name "Windows One" was floated to provide consistent branding with their many other products with "One" in the name such as Xbox One, OneDrive, OneNote, etc. but decided against because of confusion with Windows 1.0 and likely based on the response to the Xbox One name.
DirectX 4 was skipped due to it being a stopgap version and all the developers were waiting for DX5 to ship.
The Xbox, followed by the Xbox 360, probably to suggest equivalence to the PlayStation 3 and Nintendo Wii (at the time still known by its code name, Revolution). Microsoft's third console followed the trend with the Xbox One.
And of course the Nintendo series of consoles: Nintendo Entertainment System, Super Nintendo Entertainment System, Nintendo 64, Nintendo GameCube, and Nintendo Wii. And then there's the portables (Nintendo Game Boy Advance SP Micro DSi Lite XL?).
Similarly, try to figure out how old a camera is by model numbers. Sometimes these model numbers will change depending on what country the camera is being sold in. Even for the more expensive Digital SLR cameras such as the Rebels, the 60D, and the 1DmkIV, the model numbers don't seem to do much to tell you the cameras' relation to eachother, aside from additional digits in the EOS model numbers implying that the camera is progressively cheaper (A few years ago, a Canon Rebel EOS 450D ran for about seven or eight hundred bucks. The Canon 1DmkII at the time ran for something close to five thousand dollars.)
Canon's release scheme is: the more numbers in a name, the cheaper the camera (the 1000D or XS is the cheapest option, where the 1D is the most expensive); the higher the number in the series, the newer (20D is older than the 60D). The single-digit cameras are the top of the line pro-bodies with top of the line tech at the time of the release, many of which have had multiple iterations (7D; 5D vs. 5D Mk. II; 1D vs. 1D Mk. IV vs. 1Ds Mk. III)
After the Radeon 9000 series, ATI changed to card numbers beginning with X. When Direct X 10 came around and ATI redesigned their chips from the ground-up, the numbering started at HD 2000 and went from there. And then after the HD 7000 series, they redid the numbering to an even more confusing level: the Radeon Rx 200 series. Also applies to the names given to the GPU chips themselves: with the Evergreen/HD 5000 series, ATI dropped the rXXX chip naming scheme in favor of just using the development code names.
Nvidia's GeForce cards are just as confusing. The first one was "256," then there were some 3000s and 4000s followed by "FX [number]," then more numbers up to 9800, after which the 9XXX cards were rebranded as 1XX, and later releases counted up from there. Many of them have "GT," "GTX," "Ti," etc. stuck on to indicate improved performance or...something. The top card at time of writing drops the number part entirely in favor of the ambiguous word "Titan," apparently because it's in the 6XX series but they already released a "GTX 690."
The desktop version skips the 800 series, due to NVIDIA jumping the gun on releasing the Maxwell architecture for laptops. When the next generation of Maxwell came out, rather than have an 800 series for Desktops and possibly a 900 series for laptops, they just bumped the desktop series up to 900.
The Palm series of handheld organizers went through quite a few different numbering/naming schemes over the years:
"Pilot" (two numbered models) was followed by "Palm Pilot" ("Personal" and "Professional") which became the "Palm III" (III, II Ie, II Ix, II Ixe, II Ic) followed by the "Palm V" and "Palm VII". ("Palm IV" was skipped because Four Is Death.)
Later, the m100, m500, and i700 lines replaced the III/V/VII, followed by the Tungsten E/T/W/C lines, the TX and Zire, and a series of Treo phones before the end.
The Voodoo line of graphics accelerators also skipped 4, then went back to it as a budget variation of the Voodoo 5 (and then there's the Voodoo Banshee).
Desktop IBM and compatible computers. The early versions were named based on their Intel microprocessor chip number: 8086 and 8088, followed by the 80186 (which almost nobody ever even heard of, superceeded almost immediately by) 80286, 80386, and 80486. Intel complained that AMD and other knockoffs were using their names but were informed that one couldn't trademark a number, so with the 80586 they changed the name to "Pentium," followed by the Pentium II, III, etc.
The 80386 and 80486 also came in "SX" versions, the SX being a cheaper (and less powerful) version - except that it was exactly the same chip, it just had some of the programming deactivated.
Intel did this for the Core series. It started as Core then Core 2, but settled on Core iX. Though this helps in both marketing and utility (whatever number is in X represents its performance tier).
Ubuntu uses a version name based on the year and month of release, with major releases every six months. This is then followed by an alliterative adjective-noun name with the first letters going up through alphabetical order for each release. For example, 10.10 Maverick Meerkat was released in October of 2010, followed next April by 11.04 Natty Narwhal and then 11.10 Oneric Ocelot.
What about The Great War, also known as the War to End All Wars? It had a "sequel" - also known as the second World War. Nowadays we have World War I and World War II, respectively. As the third parts of the trilogy usually suck despite the biggest effects and explosions, let's hope we'll never see World War III.
Looking at the model names in the iPhone line (iPhone > iPhone 3G > iPhone 3GS > iPhone 4 > iPhone 4S > iPhone 5 > iPhone 5S/C) it would seem they skipped the second installment. In reality, the 3G and 3GS models are generally considered to be iPhone 2 and 3 respectively. However, 4S is considered iPhone 4 (just like its predecessor) rather than iPhone 5, making the naming convention oddly inconsistent. Moreover, iPhone 5 is actually the sixth gen iPhone, not fifth gen like its name would have one believe. iPhone 5C is actually a cheaper, plastic version of the 5 with reduced capabilities.
Mac OS X is usually more known by its codename more than its version number (which just increments past the decimal). Except they started with big cats. As of 10.9, they're using locations in California starting with the odd-sounding Mavericks (after a major big-wave surfing area in San Mateo County).