A subtrope of ContinuityNod. Most often seen in video games, this is music from a related work that is used at some point. Differs from RecurringRiff in that a Musical Nod is used far less, and generally not under the same circumstances it was originally used. However, the new use may be related; one game's random battle theme could be used for a single boss battle in a later game.



[[folder:Anime & Manga]]
* In ''Manga/{{Monster}}'', "[[Film/TheWizardOfOz Over the Rainbow]]" is referenced as the song Vardemann's father played on his radio station. When Vardemann finally faces the fact that his father was a spy, and decides to deal with the trust issues this inspired in him, an instrumental version of the song is played in the background.

* In ''Film/MysteryScienceTheater3000TheMovie'', during one of the intermission sketches, Mike activates the Satellite Of Love's manipulator arms. The button to turn on the arms is labeled "Manos"; when Mike pushes it, the trademark {{leitmotif}} (aka "the haunting Torgo theme") from ''Film/ManosTheHandsOfFate'' can briefly be heard.
* The very end of the ''Film/StarTrek'' film released in 2009 uses a lushly orchestrated version of the original theme, and then juxtaposes it with the movie's theme. SugarWiki/AwesomeMusic if ever there was any.
* A trailer for the remake of ''Film/TheKarateKid'' has "You're the Best Around" playing on a radio in the background for a couple seconds.
* In ''Film/CasinoRoyale2006'', the classic James Bond theme is not played until the very end. This symbolizes the newly-promoted James Bond becoming the badass secret agent we all know.
* The reveal of Brendan Fraser's car in ''Film/LooneyTunesBackInAction'' as [[spoiler: [[TheAllegedCar an AMC Gremlin]]]] is accompanied by a quote of the theme from [[CaptainObvious a certain]] [[Film/{{Gremlins}} past collaboration]] by director Creator/JoeDante and composer Music/JerryGoldsmith.
* The remake of ''Film/TheParentTrap'' has Hallie as Annie humming "Let's Get Together" from the original movie under her breath in the hotel.
* ''Film/IronMan2'': The expo theme, "Make Way For Tomorrow Today" later shows up in ''Film/CaptainAmericaTheFirstAvenger''.
* ''Film/KamenRiderXKamenRiderFourzeAndOOOMovieWarMegaMax'' marks the return of the 7 Legendary Riders, and the songs that play over theit fight scenes[[note]]"Legend Rider Battle" and "Showa Rider Wars"[[/note]] are essentially instrumental remakes of "Fight! Seven Riders" from ''Series/KamenRiderStronger'' -- to the point where the original song's composer Shunsuke Kikuchi is given co-writer credits on the new songs.

[[folder:Live Action TV]]
* The ''Series/DoctorWho'' mini episode "Time Crash" wherein the Tenth Doctor meets his Fifth incarnation has a {{leitmotif}} reminiscent of the music of the Fifth Doctor's era play intermingled with the music more typical of the newer series.
* In the ''Series/MrBean'' Christmas episode, the music Bean hums while playing with the toy marching band is clearly the opening march from ''Series/{{Blackadder}} Goes Forth''.
* While it was not used in the televised episodes, the ''Series/StarTrekTheNextGeneration'' finale "All Good Things..." would have featured a reprise of composer Dennis [=McCarthy=]'s theme for Judge Q's entrance in "Encounter at Farpoint". The composition did appear in an album later on.
* The theme music from the original ''Series/{{Battlestar Galactica|1978}}'' plays over a human-interest news piece featured in an episode of [[Series/BattlestarGalactica2003 the reimagined series]].

* In the long form Music/DavidBowie music video ''Jazzin' For Blue Jean'', the riff playing while Screamin' Lord Byron does his makeup is from Bowie's 1977 song, [[Music/LowDavidBowieAlbum Warszawa.]]
* Occurs in at least three music videos by the band Music/FooFighters.
** At the beginning of the ''Monkey Wrench'' video, a muzak version of ''Big Me'', a single from their eponymous debut album, plays in the elevator.
** At the beginning of the ''Learn to Fly'' video, a muzak version of ''Everlong'', a single from ''The Color and the Shape'', plays while the plane is being cleaned.
** The "Breakout" video opens with "Generator", from the same album, playing on a car radio.
* The organ lead-in to George Michael's "Faith" is the melody to his earlier Wham! hit "Freedom".
* Many arrangements for the Florida State University Marching Chiefs incorporate the school's famous "War Chant".
* The distinctive guitar riff from Music/MeatLoaf's "Good Girls Go to Heaven (Bad Girls Go Everywhere)", written by Music/JimSteinman for ''Bat Out of Hell II'', was remade for piano and used in "Carpe Noctem" from Steinman's musical ''Theatre/TanzDerVampire''. When Meat Loaf covered the latter song on ''Bat Out of Hell III'' as "Seize the Night", the riff was restored to guitar.

[[folder:Video Games]]
* ''VideoGame/FinalFantasyI'' for the PSP does this. The game features four {{bonus dungeon}}s, with each one having a collection of {{bonus boss}}es from ''[[VideoGame/FinalFantasyIII III]]'', ''[[VideoGame/FinalFantasyIV IV]]'', ''[[VideoGame/FinalFantasyV V]]'', and ''[[VideoGame/FinalFantasyVI VI]]''. Each one has their appropriate boss theme from the game they are from, with only Gilgamesh of ''V'' breaking the rule, using his own Leitmotif instead.
* Mog's {{leitmotif}} from ''VideoGame/FinalFantasyVI'' later appears as the theme song of Moogles in general in ''VideoGame/FinalFantasyCrystalChronicles''.
** Mog's theme itself is a remixed version of ''Final Fantasy V''[='s=] Moogle Theme. Variations of the same song are also found in ''[[VideoGame/FinalFantasyIX IX]]'', ''[[VideoGame/FinalFantasyXIV XIV]]'' and ''[[VideoGame/FinalFantasyType0 Type-0]]''
* ''VideoGame/DissidiaFinalFantasy'' features music from previous games in the series, usually as battle music. However, the Overworld or Map themes from every game in the series are used in the every character's story mode.
* In ''VideoGame/FinalFantasyVIII'', the boss battle theme Premonition begins with a snippet of the main theme to ''VideoGame/FinalFantasyVII''. Also, the Balamb Garden background music contains a line from the opera from ''VideoGame/FinalFantasyVI''.
* It's also used in ''VideoGame/FinalFantasyIX'' at least once; the Castle Pandemonium theme in that game is a slower organ version of the Castle Pandemonium theme from ''VideoGame/FinalFantasyII''.
* ''Franchise/FireEmblem'' has a few of these, in addition to the themes for [[http://www.youtube.com/watch?v=BbbeBALdv48 arena battles being the theme's from previous games]], the 6th game's "Wyvern Generals" battle theme includes both first and second games battle themes, Light and Dark from ''[=FE4=]'' reappears as the trail map theme in ''[=FE9=]''.
* The ''Franchise/SuperMarioBros'' franchise ''loves'' doing this. Much of the music from modern installments contains throwbacks to earlier games.
** ''VideoGame/SuperMarioGalaxy'' reuses the "Koopa's Road" theme from ''VideoGame/SuperMario64'', and the "Battleship Raid" theme from ''VideoGame/SuperMarioBros3''. The Athletic Overworld theme from the same game as the latter and a bouncy remix of the original Super Mario Bros theme also show up.
** The sequel, ''VideoGame/SuperMarioGalaxy2'', reuses the aforementioned ''Koopa's Road'' and ''Battleship Raid'' themes, plus the Athletic Overworld and Haunted Mansion themes from ''Super Mario World'', the Bob-omb Battlefield and Rainbow Ride theme from ''Super Mario 64'', and just about half the entire soundtrack of the original SMG.
** ''VideoGame/NewSuperMarioBrosWii'' has a nod to the ''VideoGame/SuperMarioWorld'' Castle theme in its ''own'' Castle theme. The secret world's map melody also contains the melody from ''Mario Kart 64'''s Rainbow Road.
*** The final world of ''Videogame/NewSuperMarioBrosU'', which is Peach's Castle [[AllYourBaseAreBelongToUs under Bowser's control]], features a DarkReprise of the Overworld theme from ''VideoGame/SuperMario64''.
*** There's also the [[VideoGame/YoshisIsland Superstar Baby Mario]] theme in VideoGame/SuperMario64, the VideoGame/LuigisMansion theme in [[VideoGame/MarioAndLuigiSuperstarSaga Mario & Luigi: Superstar Saga]], and earlier than that, the theme for the first game showed up in VideoGame/SuperMarioBros3's music box.
** When you revisit the Mushroom Kingdom in ''VideoGame/SuperMarioOdyssey'', you collect Power Stars instead of Power Moons. The "course clear" fanfare from ''VideoGame/SuperMario64'' plays when you collect them instead of the usual fanfare.
** ''VideoGame/FortuneStreet'' contains several previously unloved themes, including the Map Screen and Final Boss theme from ''VideoGame/SuperMarioWorld''.
** The battle theme for the BonusBoss Culex in ''VideoGame/SuperMarioRPG'' is a remix of the ''VideoGame/FinalFantasyIV'' boss music -- the boss himself is essentially one big reference to the ''Franchise/FinalFantasy'' series. Also, after beating Culex, you can hear the "Victory Fanfare" and the "Prelude" from the Final Fantasy series. In addition, Bowser's battle theme from ''VideoGame/SuperMarioBros3'' is used when he is fought at the start of the game, and it is also incorporated into the background music for his castle later on. A riff from that castle's theme would in turn make it into the music for the final board of the original ''VideoGame/MarioParty'', Bowser's Magma Mountain.
*** Before going into its own rendition of the classic theme, the "Mario's Pipe House" theme plays a little bit of the world 1 map theme, also from VideoGame/SuperMarioBros3. This exact theme was later used in ''VideoGame/MarioAndLuigiSuperstarSaga''.
*** Here's an obscure one: the file select theme contains a snippet of the high score theme from Vs. [[VideoGame/SuperMarioBros1 Super Mario Bros.]] (i.e., the slightly-more-difficult arcade version of the original NES game).
** ''VideoGame/PaperMario'':
*** The music that plays on the Bullet Bill bridge in Koopa Bros. Fortress is the airship theme from ''VideoGame/SuperMarioBros3''.
*** The music that plays during the train ride between Toad Town and Mt. Rugged is a remix of the Kalimari Desert theme from ''VideoGame/MarioKart64''.
*** The music for Yoshi's Village is the title theme from ''VideoGame/YoshisIsland''.
** The later games in the ''VideoGame/MarioKart'' series occasionally feature musical references to tracks from earlier in the series or from other Mario-centric games:
*** The intro to Rainbow Road in ''Super Circuit'' is taken from a part of the one in the [[VideoGame/SuperMarioKart original]].
** The Rainbow Road music in ''Mario Kart: Double Dash!!'' features snippets from the Rainbow Road music from both ''Super Mario Kart'' and ''VideoGame/MarioKart64''.
*** In ''Mario Kart Wii'', the music for Bowser's Castle opens with a musical nod to the castle theme from the original ''VideoGame/SuperMarioBros'', and the Rainbow Road music references both the Rainbow Road music from ''Mario Kart DS'' and the Good Egg Galaxy music from ''VideoGame/SuperMarioGalaxy''.
*** In ''Mario Kart 7'', the title screen music references the main theme from ''Mario Kart Wii'' (as well as the series' RecurringRiff, the title screen music from ''Super Mario Kart''), while the Rainbow Road music features several references to the ''Mario Kart 64'' version of the track. Meanwhile, the Wi-Fi spectator music is based on the ''Mario Kart 64'' title screen.
** "Victory in the Dream World" from ''VideoGame/MarioAndLuigiDreamTeam'' uses the opening melody of "Fight Against Monsters" from ''VideoGame/SuperMarioRPG''. Not coincidentally, both games were composed by Creator/YokoShimomura.
* A version of the bicycle theme from ''VideoGame/PokemonRedAndBlue''/''Yellow'' was used as the Pokemon Catching Contest theme in the Gold, Silver, and Crystal versions. Similarly, the Ruby, Sapphire, and Emerald versions had the Marine Museum, the background music for which was a slow version of the S.S. Anne theme from RBY.
** Inexplicably, the theme that plays when you're first starting a new game in ''Pokemon Battle Revolution'' is a more upbeat version of the Relic Forest theme from ''Pokemon Colosseum'' and ''Pokemon XD: Gale of Darkness''.
** Upon reaching Kanto in the ''[[VideoGame/PokemonGoldAndSilver Gold/Silver/Crystal]]'' versions, the Trainer battles start using the ''Red/Blue/Yellow'' theme as opposed to the new one used in Johto. This was retained in ''[=HeartGold and SoulSilver=]''.
** All but the first three of the Sevii Islands in ''[[VideoGame/PokemonRedAndBlue FireRed and LeafGreen]]'' have music from ''Gold/Silver/Crystal'' -- Azalea Town's theme on islands Four and Five, Violet City's on islands Six and Seven, and the Route 42 theme on the interconnecting routes.
** The Platinum/HGSS Frontier Brain battle themes have Emerald's Battle Frontier "main theme" stuck somewhere in the middle. [[http://www.youtube.com/watch?v=36m7U274d_g&feature=related Start listening around 0:50]].
** ''VideoGame/PokemonChannel'' has the player putting together an episode from the anime over the course of the game. The end of that quest finishes with a viewing of the entire episode projected onto the night sky, and as the episode ends, the game plays the 'End of the day' music from ''VideoGame/HeyYouPikachu''.
** Speaking of ''Hey You, Pikachu!'', another spinoff Pokemon game by Ambrella, ''VideoGame/PokemonRumble'', features the Viridian Forest Edge theme from HYP as its lobby theme.
* In the ''VideoGame/{{MOTHER|1}}[=/=]VideoGame/EarthBound'' series of games, many of the songs are either outright recycled, or make a cameo appearance in one way or another. Pollyanna, Snowman, and Humoresque of a Little Dog to be specific. The {{Plot Coupon}}s from the first two games, (Queen Mary's Song/Gigyas's Lullaby, and the Sound Stone Melodies, both known as The Eight Melodies in each of their respective games, due to each melody being split into 8 parts) are frequently remixed into other songs related to the Mother Franchise. (Queen Mary's song appears in the battle theme for Onett in ''VideoGame/SuperSmashBros'', and the two themes are mixed into a song called ''Sixteen Melodies'' for ''VideoGame/{{MOTHER 3}}''.)
** It's justified in ''VideoGame/{{MOTHER 3}}'', since most of the songs heard from ''[[VideoGame/EarthBound MOTHER 2]]'' are there due to [[spoiler:Porky's nostalgia.]]
* ''Franchise/{{Castlevania}}'' does this a lot. For instance, the first-level musics from the first three games frequently get remixed and used again in later games in the series.
** ''VideoGame/CastlevaniaCircleOfTheMoon'' was notorious for this; only three or four songs in the whole soundtrack were actually original, the rest being from previous games in the series.
*** It's used much better in ''VideoGame/CastlevaniaOrderOfEcclesia'', in the game's intro. When the opening text scroll mentions the Belmonts, a little snippet of "Vampire Killer" (the first level music from the original game) plays.
** Death's theme in ''VideoGame/CastlevaniaJudgment'' is a combination of the music from the first time he was the final boss ("Evil's Symphonic Poem" from ''VideoGame/CastlevaniaLamentOfInnocence'') and the music from the first time he was a boss ("Poison Mind" from [[VideoGame/CastlevaniaI the original game]]).
* ''VideoGame/{{Uninvited}}'' for the NES featured a room with an old phonograph. If the player used the phonograph, they were treated to a [[http://www.youtube.com/watch?v=LbD-nzqG2ig#t=0m20s bizarre, off-key rendition]] of the ''VideoGame/{{Shadowgate}}'' theme.
* Oddly, [[http://www.youtube.com/watch?v=h7im--aTBAM the level 8 theme]] from ''VideoGame/{{Descent}}'' quotes [[http://www.youtube.com/watch?v=Xxjw6ZsHjNU "The Death of Åse"]] from Grieg's ''Peer Gynt'' suite. Huh.
* This occurs in ''Franchise/TheLegendOfZelda'' series.
** In the King's Tomb in ''[[VideoGame/TheLegendOfZeldaTheMinishCap The Minish Cap]]'' for Game Boy Advance, a remix of the original NES dungeon theme plays. And, more importantly, the NES's five-note "item appears" jingle appears here for the first and only time in the game.
*** The witch Syrup's theme is rearranged from her shop music in the ''Oracle'' series, also appearing as the Witch's Hut song way back in ''VideoGame/TheLegendOfZeldaLinksAwakening''.
** Listen very carefully, and one can hear a snippet of the Goron Lullaby from ''[[VideoGame/TheLegendOfZeldaMajorasMask Majora's Mask]]'' in the background music of ''[[VideoGame/TheLegendOfZeldaTwilightPrincess Twilight Princess]]''' Goron Mines dungeon. The Howling Stones also use a few Ocarina tunes from the previous games, like the [[VideoGame/TheLegendOfZeldaMajorasMask Song of Healing]], and [[VideoGame/TheLegendOfZeldaOcarinaOfTime Requiem of Spirit.]]
*** Not to mention the Sacred Grove music, which is Ocarina's "Saria's Song" over a new piano track, and the [[spoiler: Temple of Time]], which takes it music straight from Ocarina.
*** ''[[VideoGame/TheLegendOfZeldaTheWindWaker Wind Waker]]'' does this several times, too, such as on Outset Island and Forest Haven (contains variants of the Kokiri Forest theme, as well as Saria's Song for the latter) and the Ballad of Gales (Minuet of Forest).
*** At least one NPC hums the "item get" music when giving you a piece of heart.
** The GameOver music from ''Ocarina of Time'' has been reused as the first part of ''[[VideoGame/TheLegendOfZeldaALinkBetweenWorlds A Link Between Worlds]]''' Game Over theme (the other part being taken from the original NES game), the failure theme in the Zelda-themed attraction in ''VideoGame/NintendoLand'', as well as the Game Over music in ''VideoGame/HyruleWarriors''.
* "Into the Wilderness", the Opening theme of the first ''VideoGame/{{Wild ARMs}}'' game, had been continuously remixed throughout the series, having been used as background music, boss battle music, and post-battle music.
** Also, the main theme of ''VideoGame/{{Wild ARMs 2}}'' is played in ''VideoGame/{{Wild ARMs 5}}'' when the cell phone belonging to the {{Expy}} of Ashley rings.
* ''VideoGame/{{Pulseman}}''[='s=] Neo Tokyo theme was remixed for the ''[[VideoGame/PokemonDiamondAndPearl Pokémon Diamond, Pearl and Platinum]]'' rival theme.
* ''VideoGame/{{Persona 3}}: FES'' has the pre-main menu song used in ''VideoGame/{{Persona 4}}''[='=]s class trip.
** The ''Persona 3'' song "Joy", which plays during most of the Social Link scenes, is used in the opening scene of ''Persona 4''[='=] class trip. Fitting, considering [[spoiler:Chihiro]] makes a prominent appearance.
*** When the group visits Club Escapade at Paulownia Mall, the band on stage is playing "P3 Fes," the opening theme of [[UpdatedRerelease the updated edition]] ''Persona 3 [[CaptainObvious FES]]''.
** Likewise, ''Persona 3 Portable'' plays ''Persona 4'' music playing during the Female Main character's trip to Inaba.
** For that matter, you can ask Fuuka to play various music tracks from ''VideoGame/{{Persona}}'' ("Persona" and "Snow Queen") and ''VideoGame/{{Persona 2}}'' ("Time Castle" and a dramatic version of "Maya's Theme.") Notable in that the original game's Snow Queen Quest was [[DummiedOut axed]] in the [[{{Macekre}} rather bad]] English translation, and thus its musical theme was only present as FES' "BGM 01" (until ''VideoGame/{{Persona}}''[='=]s PSP UpdatedRerelease).
* ''VideoGame/MegaMan2'' has a very nice musical nod: The opening theme is a remix of the ending theme for the first game.
** The music that plays at the very first mission of ''VideoGame/MegaManZero'' is a remixed version of the eponymous character's badass {{leitmotif}} from the first ''VideoGame/MegaManX'' game.
** [[https://www.youtube.com/watch?v=uKymeuwwtAk "Final Transmission,"]] the theme used for the network areas at the WWW Base, TheVeryDefinitelyFinalDungeon of ''VideoGame/MegaManBattleNetwork 3'', takes several cues from ''VideoGame/MegaMan8''[='s=] [[https://www.youtube.com/watch?v=g-wez5eZwWA Wily Tower 2.]] Considering that ''Battle Network'' is an AlternateUniverse of [[VideoGame/MegaManClassic the Classic series]] [[AlternateHistory based on the premise of computer networking flourishing over robotics]] (not to mention that ''[=BN3=]''[='s=] overall plot echoes ''[=MM8=]''[='s=] to some degree), this is probably intentional.
** The [[http://www.youtube.com/watch?v=6zDxL3oGpsU main]] [[http://www.youtube.com/watch?v=QHRD-4chGqE theme]] of ''VideoGame/MegaManPoweredUp'' is actually a remix of [[http://www.youtube.com/watch?v=4g42uM4DhVE "Still Life"]] from ''VideoGame/MegaMan8''.
** [[http://www.youtube.com/watch?v=f8DrHPm8OxE Roll's]] [[http://www.youtube.com/watch?v=4fvQIPIL55c heartrending gesture]] in ''VideoGame/MegaMan10'' takes cues from [[http://www.youtube.com/watch?v=MmgkU3nBxgY her theme]] in ''Mega Man Battle and Chase''.
** [[https://www.youtube.com/watch?v=WpAdLbXZEwQ Duff McWhalen/Tidal Makkoeen's stage theme]] from ''VideoGame/MegaManX5'' is a remix of [[https://www.youtube.com/watch?v=H9Urr2XOyxU Bubble Crab's stage theme]] from ''[[VideoGame/MegaManX2 X2]]''.
** [[https://www.youtube.com/watch?v=LuWDDQRx3ZY Sigma's second form theme]] from ''[[VideoGame/MegaManX6 X6]]'' takes some cues from his [[https://www.youtube.com/watch?v=YKHRvjEzHgE first form theme]] from ''[[VideoGame/MegaManX1 X1]]'' and [[https://www.youtube.com/watch?v=-NrC8qE_hNw both of]] [[https://www.youtube.com/watch?v=RMiKfX2pb6M his themes]] from ''[[VideoGame/MegaManX2 X2]]''.
* At the beginning of ''VideoGame/{{Metal Gear Solid 2|SonsOfLiberty}}'', the Alert theme and boss battle music incorporated parts of the Alert theme from [[VideoGame/MetalGearSolid the first game]].
** The background music from the first ''VideoGame/{{Metal Gear|1}}'' game for the MSX was used in the VR Training segment of ''VideoGame/MetalGearSolid''.
* ''VideoGame/AnotherCode R'' starts using the music from the first game during the final few chapters, starting with a particularly jarring moment: [[spoiler:the reunion music from the first game when Ashley meets her dad is replayed as Matthew breaks his TraumaInducedAmnesia and remembers how he accidentally let go of his sister's hand playing on the Lake Juliet dock, leading to her drowning in the lake.]]
* The Norfair Ancient Ruins theme from ''VideoGame/SuperMetroid'' has played in many, many fire-based areas over the series since (Magmoor Caverns from ''VideoGame/MetroidPrime'' being an example).
** ''VideoGame/MetroidPrime'' updates and repurposes the theme from Ridley's lair in ''VideoGame/SuperMetroid'' as the main theme for Magmoor Caverns.
* ''VideoGame/PokemonMysteryDungeonExplorers of Sky'' uses the background music of Ravaged Field, Magnetic Quarry, Thunder Meadow, Mt. Discipline, Furnace Desert and Jungle (all from ''Red/Blue Rescue Team'') as the dungeon music for Southern Jungle of Team Charm's special episode.
* ''VideoGame/ChronoCross'' uses [[VideoGame/ChronoTrigger Lucca's Theme]] for its victory fanfare.
** The overworld theme for the Home dimension is also a tropical-sounding remix of one of the 1,000 AD pieces of map music (i.e. the one that plays when away from towns) from ''VideoGame/ChronoTrigger''.
* In the various guest BonusBoss instances of [[Creator/TriAce tri-Ace]] games (e.g. [[VideoGame/ValkyrieProfile Lenneth and Freya]] in ''VideoGame/StarOceanTillTheEndOfTime'' or [[VideoGame/StarOceanTheSecondStory Gabriel Celeste]] in ''VideoGame/ValkyrieProfile2Silmeria'') music from their original games will play. The BonusDungeon of ''VideoGame/ValkyrieProfile'' also shares a theme with the Maze of Tribulations from the ''VideoGame/StarOcean'' games.
* ''VideoGame/{{Spore}}'' has one during the civilization and space stage when ever you hover over a city that isn't yours. [[spoiler: It's "Grunge City" from ''[[VideoGame/SimCity Sim City 4 Deluxe]]'']].
* ''VideoGame/BanjoKazooie: Nuts 'N Bolts'' has this all ''over'' the damn place. Virtually every single piece of music from the game has nods to songs from not only previous games in the franchise itself, but also from other games made by Rare like ''VideoGame/ConkersBadFurDay'' and ''VideoGame/DonkeyKong64''.
* The Starbase stage from ''[[WesternAnimation/TeenageMutantNinjaTurtles1987 Turtles in Time]]'' uses an arranged version of the music from Krang's ship in ''The Manhattan Project''.
* The final segment of ''VideoGame/SonicAdventure''[='=]s Windy Valley is accompanied by the Green Grove theme from the [[UsefulNotes/MegaDrive Genesis]] version of ''VideoGame/Sonic3DBlast''. Likewise, the latter's Panic Puppet (Act 1) theme is used in the former's Twinkle Park level.
** Related to the ''Sonic'' series: the Speed Slider boss theme from ''VideoGame/KnucklesChaotix'' appears in ''VideoGame/BillyHatcherAndTheGiantEgg'', as the music for Circus Park's night stage. Mariko Nanba composed music for both games.
** In ''VideoGame/SonicGenerations,'' the solo of Classic Sonic's remix of Escape from the City is the beta version of the theme, plus the second verse gets [[AutoTune Auto-Tuned]] to the melody of [[VideoGame/Sonic3AndKnuckles Endless Mine]].
** "''You Can Do Anything (Toot Toot Sonic Warrior)''", the Japanese theme of ''VideoGame/SonicTheHedgehogCD'', is a lyrical remake of the Green Hills stage theme from the [=GameGear=]/Master System version of ''VideoGame/SonicTheHedgehog2''.
** An unintentional example: the pre-chorus of Silver's theme in [[VideoGame/SonicTheHedgehog2006 Sonic '06]], "Dreams of an Absolution", sounds a bit like the Green Hill Zone theme from ''VideoGame/SonicTheHedgehog1'', but WordOfGod says this was a coincidence.
** White Park Zone Act 2 from ''VideoGame/SonicTheHedgehog4: Episode II'' manages to cram part of the Twinkle Park: Pleasure Castle theme from ''VideoGame/SonicAdventure'' into one of the bridges.
* The hang gliding music in ''VideoGame/{{Pilotwings}} Resort'' contains snippets of its counterpart from ''Pilotwings 64''.
* The fanfare when the boss door opens in ''VideoGame/DonkeyKong64'' is an arrangement of the one that accompanies the elusive "Stop-N-Swop" items from ''VideoGame/BanjoKazooie'' (both games were composed by Grant Kirkhope).
* ''VideoGame/MushihimeSama Futari'''s Stage 3 BGM, [[http://www.youtube.com/watch?v=bAdsMgIZAEE Shinjuu Forest Rebel Army?]], takes a page out of ''Mushihime-sama''[='=]s final stage BGM, [[http://www.youtube.com/watch?v=n9MnBgArFX8 The One Who is Always in the Forest]].
* In ''[[VideoGame/DonPachi DoDonPachi DaiFukkatsu]]'', a somewhat different version of the stage BGM plays if you access a hidden path in stages 2, 3, or 4. In Stage 2, the music shares a phase with "Colored Rainbow", the stage 2 BGM of ''[=DoDonPachi=] Dai-Ou-Jou''. Stage 3 borrows from the stage 3 BGM of the original, and stage 4 has a segment from the ''Dai-Ou-Jou'' boss battle theme ''[=DoDonPachi=]''.
* The [[http://www.youtube.com/watch?v=2-_g8NZr1tA theme song]] of ''VideoGame/TheElderScrollsVSkyrim'' incorporates musical elements from previous iterations of the Elder Scrolls theme, notably a similarity to the drums of [[VideoGame/TheElderScrollsIIIMorrowind Morrowind's]] theme and a segment of [[VideoGame/TheElderScrollsIVOblivion Oblivion's]] theme near the end (about 3:00 into the Skyrim theme, the original musical cue comes from [[http://www.youtube.com/watch?v=V3EOibiVzq4#t=69s this segment]] of the Oblivion theme.)
* In ''VideoGame/KidIcarusUprising'', parts of Chapter 24's music are taken from the first Kid Icarus's castle theme.
** Chapter 4's music uses variations on the first game's "angry Reaper" music as its motif. To make this clearer, the original version plays whenever a Reaper spots Pit.
* The various hidden maps in ''VideoGame/VandalHearts II'' are each accompanied by one of three tracks not heard elsewhere in the game; all three are more densely-orchestrated versions of battle themes from ''Vandal Hearts I''.
* In ''[[VideoGame/DisneysMagicalQuest The Great Circus Mystery]]'' (''Disney's Magical Quest 2''), you get to fight a living painting of Emperor Pete, the final boss from the first ''Magical Quest'', complete with the [[http://www.youtube.com/watch?v=rDoyVflL7Nk same]] [[http://www.youtube.com/watch?v=MndSzd9BBCk music]].
* ''VideoGame/ResidentEvilTheUmbrellaChronicles'', being a [[LightGunGame genre swap]] of previous titles, understandably reuses a lot of music. One worth mentioning, which is played during Wesker's first mission, is a combination of two tunes: [[https://www.youtube.com/watch?v=9mUAV21dHAI "Wreckage of the Mad Experiment"]] from ''VideoGame/ResidentEvil2'' and [[https://www.youtube.com/watch?v=9ekIu14MMko Wesker's theme]] from the original ''VideoGame/ResidentEvil''. ''[[https://www.youtube.com/watch?v=v2Nr7Dajqxw And it sounds awesome.]]''
* ''VideoGame/DotHackGU'' character Tri-Edge has an action-packed, rather dark theme... which mysteriously contains a brief snippet of the calm and peaceful Mac Anu music from the first set of games, heavily contrasting the rest of the theme. At first this merely seems to be a nod to the fact that Tri-Edge shares Kite's design [[spoiler:but it turns out to be a hint at his true nature as a ''defender'' of the system, and therefore on the side of the heroes.]]
* [[http://www.youtube.com/watch?v=JQ4Z4xfld2k Nina]] and [[http://www.youtube.com/watch?v=H9Loo3PPIl0 Anna's]] ''VideoGame/{{Tekken}} 5'' endings contain a snippet of [[http://www.youtube.com/watch?v=1jhqWrwmUdM "Endless Warfare,"]] the theme of Raphael in ''[[VideoGame/SoulSeries Soulcalibur III]]''. (Thanks to the presence of [[LegacyCharacter Yoshimitsu]] in both series, ''Tekken'' and the ''Soul'' series are generally assumed and all but stated to [[SharedUniverse exist centuries apart within the same timeline]].)
** In Mokujin's ''Tag Tournament 2'' [[http://www.youtube.com/watch?v=EFATGrwt1R4 ending]], he's invited to Creator/BandaiNamcoEntertainment's Future Research Laboratory. After hitting it off with a female Mokujin and then toying with her affections, Mokujin is [[MegatonPunch "escorted"]] out of the premises. The ''VideoGame/DigDug'' [[{{Fanfare}} death jingle]] plays.
* The Game Boy version of ''Tetris Attack'' remixes the SNES game's/''Panel de Pon's'' credits music to include Yoshi's theme, a remix of the story music-box from ''VideoGame/YoshisIsland''. This remix is what the [=GameCube=] ''Nintendo Puzzle Collection'' remake/sequel of ''Panel de Pon'' bases its ending theme on, including the snippet of Yoshi's theme.
* In ''VideoGame/WorldOfWarcraft'' the music used during the Pet Battle minigame is all remixes of music from ''VideoGame/WarcraftOrcsAndHumans'' and ''VideoGame/WarcraftII''.

[[folder:Visual Novel]]
* ''VisualNovel/AceAttorney'':
** ''Trials and Tribulations'' uses a slightly altered version the first game's ''Pursuit ~ Cornered'' for the very final confrontation.
** In the end of Case 3-4, ''Justice For All's'' courtroom theme plays; this being the only time it plays outside of its own game.
** ''VisualNovel/ApolloJusticeAceAttorney'' uses the original ''Objection!'' theme when Phoenix objects in the first case, and reuses LOTS of music from the first game in "flashbacks" in the final case.
* ''VisualNovel/VirtuesLastReward'' recycles several tracks, including the title theme, from its predecessor, ''VisualNovel/NineHoursNinePersonsNineDoors''.

[[folder:Western Animation]]
* The first episode of ''WesternAnimation/{{Reboot}}'' features a distinctive theme for the Space Game in its first episode. The theme is brought back much later on in the episode ''System Crash'' when the User from that game emerges in Mainframe.
* Episode 4 of ''WesternAnimation/ScoobyDooMysteryIncorporated'' has Daphne humming the theme from ''The New Scooby Doo Movies'' as she knits an ascot for Fred.
* A cool shout out to {{ComicBook/Robin}}'s origins is used in ''WesternAnimation/TeenTitans'' when Slade taunts Robin - who has temporarily become his [[TheDragon Dragon]] to protect the other Titans - by claiming that eventually Robin might start to see him as a sort of father figure. Robin responds with "I already have a father.", as the screen pans up to show [[{{Franchise/Batman}} bats]] rising to the sky while music from ''WesternAnimation/BatmanTheAnimatedSeries'' plays.