[[quoteright:230:http://static.tvtropes.org/pmwiki/pub/images/Super_mario_sunshine.jpg]]
[[caption-width-right:230:Time to let the sun shine with Mario's new adventure.]]

-> "''On a tropical island far from the Mushroom Kingdom, among a people enchanted by sunshine, Mario has taken a break from the hopping, the bopping, and saving the princess to take a well deserved vacation... or so he thinks.''"
-->-- [[http://www.youtube.com/watch?feature=fvwp&NR=1&v=cDg-HaoXvoI E3 2002 trailer]].

[[Franchise/SuperMarioBros Everyone's favorite portly plumber]], Princess Peach, five Toads ([[ColorCodedCharacters Red, Green, Yellow, Blue, and Purple]]) and Toadsworth go on a vacation. When they arrive at scenic Isle Delfino, they find that the place has been polluted and plastered with graffiti. Additionally, the [[MacGuffin Shine Sprites]] that power the island have disappeared. The culprit is a guy who looks suspiciously like Mario. Everyone's favorite plumber is promptly arrested as he arrives, falsely accused of vandalizing the island. He is [[KangarooCourt put on trial, found guilty,]] and ordered to clean up the graffiti and recover the Shine Sprites. To help with the cleaning, Mario uses a water/jetpack thing called FLUDD. [[HilarityEnsues Wacky hijinks ensue]], Peach gets kidnapped ''again'', and [[HijackedByGanon Bowser is behind it all]] (and he has [[OverlordJr a son]] to boot).

Notably features voice-acted dialogue for all the main characters [[HeroicMime except Mario]]. Subsequent games in the main series have returned to dialogue boxes, along with voiced sound effects. Overall, this was the 3D Mario to break away from the "Mario formula" the most (tellingly, Goombas and regular Koopas are nowhere to be found, and Mario's nowhere near the Mushroom Kingdom).
----
!!TROPE-ICAL ISLAND: THE TROPICAL TROPE-LISTING TRAIL
* AbsenteeActor: As in ''VideoGame/SuperMario64'', Luigi doesn't appear or get mentioned at all.
* AbsurdlySpaciousSewer: Ricco Harbor's blooper race takes place in the sewers, and there is quite a lot of room to ride around. To an extent there is also the sewers of Delfino Plaza, though they are there mostly as a shortcut around town.
* AirVentPassageway: Sirena Beach's Hotel Delfino has a very spacious air vent system in the ceiling above the third floor. Mario can go through it to get into some locked hotel rooms, which is actually required in Epsiode 3 to get the Shine Sprite.
* AllOrNothing: If Mario fails in the Balloon game at Pinna Park or loses any of the Il Piantissimo races, he will lose a life. Subverted in the Ricco Harbor Blooper Race. Crashing will get Mario instantly killed, but if he simply doesn't finish the race in time, Mario will just be transported back to the hub world.
* AmusementPark: Pinna Park is the island's amusement park.
* AndYourRewardIsClothes: Once HundredPercentCompletion is achieved, you unlock a special Shine Sprite shirt for Mario to wear whenever he equips the sunglasses.
* AndYouThoughtItWasAGame: The director of Pinna Park thinks that the boss fight between Mario and Mecha-Bowser is a staged event designed to lure in tourists.
* ApatheticCitizens:
** The residents of Delfino Plaza are not only unwilling to lift a finger to help recover the Shine Sprites or capture Shadow Mario, but at multiple points, there's a man running around ''on fire'' and nobody else seems motivated to try to help him. The man on fire doesn't even help HIMSELF. He runs back and forth endlessly along the same few feet of sidewalk, despite the fact that he's only a few yards away from a huge body of water.
** The manager of Hotel Delfino lampshades this. He asks Mario to get rid of Phantamanta and acknowledges that he doesn't even know who Mario is, just that he looks like someone who is very capable.
** The citizens of Isle Delfino are in a lather because the Shine Sprites need collecting so they can brighten up the Plaza, yet a ton of said citizens, not the least of which being in the Plaza, already have a number Shine Sprites in their possession. But instead of just pooling them earlier, or giving them to Mario so the island can be brightened sooner, they putter around and make him collect blue coins for them or break crates or whatnot. The keeper of the blue coin Shine Sprites in particular has one-fifth of all the Shine Sprites in his possession, yet he requires ten blue coins each before he'll let any one of them out.
** The one exception is a level where you have to traverse a series of platforms by getting Piantas [[FastballSpecial to throw you to them.]] And even ''then'', if you talk to them from the wrong angle, they'll throw you into the bottomless abyss, essentially murdering you.
* ArmlessBiped: The cataquacks which are large duck-like creatures with no arms or wings, however they make up for it with their large bills that they use to fling Mario into the air.
* ArtifactAlias: Bowser Jr. initially disguises himself as a double of Mario (Shadow Mario). But even after his true identity is discovered, Bowser Jr. still often shows up as Shadow Mario. In most cases this is justified by Bowser Jr. wanting to continue ruining Mario's reputation, but Shadow Mario continues to appear in the cutscenes in which he steals Mario's FLUDD, where only Mario is there to see him.
* AscendedExtra: Petey Piranha debuts here as [[WarmupBoss an average boss]]. He's not remembered as that, though.
* AsimovsThreeKindsOfScienceFiction: The game falls under Adventure Science Fiction -- the paintbrush causes the problem, and the FLUDD is the solution to it.
* AsteroidsMonster: Phantamanta splits into smaller versions of itself whenever it takes enough damage. Once they get small enough, they will disappear when hurt.
* AttackOfThe50FootWhatever: Bowser is HUGE in the final battle.
* BackpackCannon: FLUDD is a multipurpose water pump created by E. Gadd. It's worn like a backpack, and one of its functions is basically being a super-powerful water hose.
* BalloonBelly: Petey Piranha, when overfilled with water. The player has to use that ability to their advantage, forcing Petey to drink enough water that he tips over and exposes his belly button.
* BeeAfraid: The beehives in certain levels are more dangerous than most of Shadow Mario's minions.
* BigBad: Shadow Mario, the evil look-a-like who antagonizes you throughout the entire story and the reason the island is polluted, plus the reason the Shine Sprites have vanished. However, he is also Bowser's [[TheDragon Dragon]] - and Bowser's son in disguise, making his debut.
* BigBoosHaunt: Hotel Delfino at Sirena Beach is effectively the haunted house level. It's filled with Boos and has some spooky set pieces.
* BilingualBonus: Most of the location names have Italian words in them. For those curious:
** Delfino: Dolphin[[note]]Isle Delfino is called Dolphic Island in the Japanese version, but Hotel Delfino and Casino Delfino use the same names in both English and Japanese.[[/note]]
** Bianco: White
** Ricco: Rich
** Gelato: Ice cream[[note]]technically a ''kind'' of ice cream[[/note]]
** Pinna: Fin
** Sirena: Mermaid
** Pianta: Plant[[note]]In the Japanese version, however, they're called "Monte", meaning "mountain". Their description on the map even calls them "the mountain people".[[/note]]
** Corona: Crown
** Il Piantissimo: ... The Very Plant, The Most Plant-iest... or "Very Pianta."
** Noki: May be an alternate spelling of "gnocchi", a type of short pasta or for small potato dumplings of the same name. The Noki themselves are kind of round and lumpy, so they kind of ''look'' like gnocchi. In the Japanese version, Nokis are the ''Mare'' (sea) people.
** There are signs around Delfino Plaza with the word "Benvenuto", or welcome.
* BuffySpeak: On the airstrip at the beginning, after the Shine Sprite appears, one of Toads says "A shiny! It came out of the yucky!"
* CameraScrew: The camera has a bad tendency to let scenery elements get in the way of your view of Mario. Also, it's impossible to move the camera when you're right in a corner outside of the auto-center feature:
%%* CasinoPark: "Casino Delfino" in Sirena Beach's Hotel Delfino is a little less wacky than most examples of this trope, but it's still an example.
* ChekhovsGun: Possibly the Bowser pad on the lighthouse roof. These are littered around the edges of the final boss arena and are used the same way; if you didn't do the one on the lighthouse, you might not have known immediately what to do. But then again, it doesn't appear in any place other than the two mentioned.
* ClamTrap: There is a ride at [[AmusementPark Pinna Park]] containing several giant clamshells. Mario can open one by spraying it with water and climb in, but if he lingers too long, the clam snaps shut and hurting him.
* ContinuityCavalcade: When FLUDD is scanning Mario, the camera switches to FLUDD's point of view. A small screen in the corner shows scenes from ''VideoGame/SuperMarioBros1'', ''VideoGame/SuperMarioWorld'', and ''VideoGame/SuperMario64 Mario''.
* ContinuityNod: Professor E. Gadd from ''VideoGame/LuigisMansion'' created Bowser Jr.'s magic brush and FLUDD.
* ConvectionSchmonvection: The final level has Mario traverse the insides of a volcano. By guiding a boat through the lava. A boat made of mud.
* CosmeticAward: The sunglasses and Shine Sprite shirt (before you beat the game, you just get the sunglasses after getting 30 Shine Sprites). The sunglasses aren't completely non-functional, as they turn down the game's brightness by a degree once it starts getting too bright. However, this doesn't affect gameplay in any way, unless the player just prefers a darker screen.
* CriminalDoppelganger: The reason why Mario is sentenced to clean the entire island during his vacation is because Bowser Jr. is impersonating him and causing trouble.
* DamnYouMuscleMemory: Mario can't long jump here, unlike in ''VideoGame/SuperMario64''. Compensated by FLUDD's hover nozzle.
* DeusExMachina: The flooding of Delfino Plaza. Once you've cleared all the Shadow Mario challenges, a flash flood from Corona Mountain submerges the coastal city in a half-dozen meters of water. What causes it is "record breaking rain fall", all of which happens off screen; it cleans up the city and satisfies the conditions for Mario to be set free after his arrest and being tasked with removing all the graffiti.
%%* DisneyDeath: FLUDD, but the Toads repair him in the end.
* DistressedDamsel: Princess Peach gets kidnapped and held hostage after 10 Shine Sprites are recovered.
* TheDragon: Shadow Mario aka Bowser Jr. making his debut as his father [[BigBad Bowser's]] official [[TheDragon Dragon]].
* DualBoss: The FinalBoss is a fight against both Bowser and his son. Bowser breathes fire at you and tips the tub to splash you with hot water quite often, while a barrage of Bullet Bills is fired at you from Bowser Jr.'s Submarine.
* DummiedOut: Only in the original Japanese release does there exist text files for what seem to be a train station system, with a list of harbors leading to levels, even ones that aren't part of the final game at all. The text for what could be a messaging tree also includes buying tickets and stamps.
* EasterEgg: One of the levels involves shrinking and getting into a glass bottle. By crawling into a hole in a wall and rotating the camera around, you can see a book behind the wall. It's the only one in the game and ''nobody knows what it's doing here''. Supposedly the original point of the mission was to find the book of the guy who sent you into the bottle, but they later changed it to a red coin hunt, and they never bothered to remove the book model.
* EscortMission: Episode 8 of Gelato Beachs requires rolling oversized watermelons to a juice vendor to be judged for an contest. Complicating matters are the cataquacks roaming the beach, as they can and will throw the melons into the air and smash them via gravity.
* ExcusePlot: Seemingly averted at first; the game has a [[ClearMyName legitimate reason]] for Mario to clean up the island, and each area has a noticeable subplot, but subverted later when the overarching plot is abandoned in favor of collecting the rest of the shines and saving Peach.
* FamilyUnfriendlyViolence: RecurringBoss Gooper Blooper must be defeated by unplugging the cork from his mouth, requiring Mario to get in the squid's face, seize the object, and yank as hard as he can before it snaps back. Gooper Blooper fights back by trying to bludgeon Mario with his tentacles, but don't worry -- Mario can crush and tear his limbs off one-by-one to make the job easier.
* FluffyTamer: A female Pianta that lives in Pianta Village has a number Chain Chomps -- recurring ''Super Mario'' {{mooks}} known for being dangerous -- as pets. She treats them like her precious babies and gets very upset when they start suffering from being overheated.
* FrameUp: Mario was framed for messing up Delfino Island by Bowser Jr. disguised as Shadow Mario.
* FreeRotatingCamera: The camera can be manipulated with the controller's C-Stick.
* FungusHumongous: Giant mushrooms be found at Pianta Village.
* FundamentallyFunnyFruit: Durians, which cannot be picked up, only kicked.
* FunWithAcronyms: FLUDD stands for Flash Liquidizer Ultra Dousing Device, and the Delfino Emergency Broadcast System is known as D.E.B.S.
* GoofyPrintUnderwear: Electrokoopas are wearing pink underwear (or possibly pink swim trunks) under their shells.
* GottaCatchThemAll: Mario can reach Bowser with as few as 50[[note]]Technically 49 (43 with glitches), as it is possible to sequence break and skip the first Shine Sprite in Bianco Hills. It is also possible to clip through the roof of the Surf Cabana in Gelato Beach, allowing you to get the eighth Shine in episode 1, thereby opening up episode 7. One can also skip the fifth Shine in Pinna Park by clipping into the park with Yoshi after unlocking him by beating episode 4 to get the sixth Shine.[[/note]] Shine Sprites; however, Mario can't just choose any 50 to go after. There is a mandatory path of missions to complete, and any other Shines outside that path do nothing but boost Mario's overall Shine Sprite count. Which means that over half the Shine Sprites in the game serve no other purpose than collecting them for HundredPercentCompletion.
* GratuitousItalian:
** Most of the place names in Delfino have an Italian component (including "Delfino" itself), and signs around Delfino Plaza say "Benvenuto".
** Mario sometimes says "Arrivederci" (Good-bye) when he dies.
* GreaterScopeVillain: Bowser himself, as he gave Bowser Jr. his orders and only appears at the very end of the game.
* GreenAesop: Oil spills are bad.
%%* GreenHillZone: Bianco Hills.
* GrimyWater: Polluted water can be found in some levels, and it will harm or outright kill Mario if he falls in.
* GuideDangIt: The Blue Coins and Plaza Shine Sprite locations will not be immediately obvious. There are such gems as "Spray a random yellow bird", "Spray a random patch of ground", and ''"Spray water at the sun."''
* HardLevelsEasyBosses: The boss fights are largely simplistic, and not much of a challenge as a result. The normal levels tend to be much more difficult, as a number require doing tricky platforming or throw curveballs on what needs to be done to obtain the Shine Sprites.
* HawaiianShirtedTourist: Whenever Mario visits the sunglasses vendor after clearing the game, he can wear a Shine-Sprite-patterned shirt in addition to the glasses.
%%* HeKnowsAboutTimedHits: The tutorial FLUDD gives you at the beginning of the game.
* HellHotel: Hotel Delfino is haunted by heat-stricken Boos.
* HelpfulMook: Pink Boos are non-hostile, and will turn into platorms when sprayed with water.
* HijackedByGanon: When Shadow Mario reveals his true identity as Bowser Jr., he reveals it was Bowser who wanted Mario to be misblamed.
* HorseOfADifferentColor: Yoshi, as usual. His color also affects the color of juice he spits, which has different effects as well. If he's out of juice he turns his iconic green color and spits water. And then distingrates in 5 seconds. He also turns green and disintigrates if he jumps into a body of water more than knee high. What kind of Yoshis do they breed on Isle Delfino?
* HubLevel: Delfino Plaza acts as the game's hub, granting access to all of the main areas and some bonus levels.
* HumongousMecha: Mecha-Bowser. There were [[VideoGame/PaperMario mechanical]] Bowsers before, but this is the first bona-fide giant robot facsimile of the Koopa King.
* HypocriticalHumor: In the cutscene before the final boss, Bowser will complain about Mario ruining his vacation, despite the fact that the he did that exact thing to Mario's.
* IdiotBall:
** There are many instances where Isle Delfino citizens can see Shadow Mario running around stealing things, leaving many a litre of goop in his wake; he is usually followed a few seconds later by the real Mario, the latter often stopping to scrub the former's mess. Yet the court's decision never gets reversed...
** Some of the inhabitants have Shine Sprites that they give to to Mario when he completes a mission. Whether they're too stupid to hand over the Shines to the authorities, or they're willfully hoarding them and the authorities are too stupid to arrest them is for the viewer to decide.
* InfiniteStockForSale: The raccoon merchant trades Shine Sprites for blue coins, both of which are in limited quantity. When he's sold the last one, he [[LampshadeHanging wonders what he'll do for a living now.]]
* InvisibleWall: There's one in the middle of the ocean which not keeps you not only from going out too far, but also from sequence breaking by selecting a mission in one area and then swimming directly to another. For instance, Delfino Plaza and Ricco Harbor are practically right on top of each other, but if you try to swim from one to the other, you'll ''almost'' make it, then smack right into the invisible wall and have to go back.
* ItemGet: It provides both the image and is the {{Trope Namer}}.
* {{Jerkass}}: Il Piantissimo is an egotistical braggart who challenges you to flag races and will trash-talk you if you lose.
* KangarooCourt: Mario does not receive a defense attorney or witness testimony. He is arrested on the sole premise that his face is the same as the one on a poster, despite multiple witnesses being able to attest that he had just arrived on the island. The one objection he does receive is instantly overruled, despite it coming from Princess Peach.
%%* KidAppealCharacter: Several kinds. Beside the Toads, we have Nokis and Sunflower Kids... [[MyFriendsAndZoidberg even Bowser Jr.]]!
* KillItWithWater: Many enemies in the game can be killed by spraying them with water, and the ones that don't get killed will be stunned.
* LavaIsBoilingKoolAid: Corona Mountain. The lava is actually GrimyWater that is colored yellow and orange. If Mario falls into it, there is a water splash, he instantly dies, and his silhouette can be seen floating like a dead corpse. If you use a cheat code to keep your life meter full at all times, you can actually swim under the surface just like in regular water, too.
* LethalLavaLand: Most of Corona Mountain's interior is a giant lava pool.
* LevelsTakeFlight: Gelato Beach's "The Sandbird is Born" episode has Mario riding the titular bird through a cloud-filled course to collect red coins.
* LukeYouAreMyFather: Bowser Jr. claims Peach is his mother. He's wrong, of course, and knows it.
* MacGuffin: Shine Sprites.
* MachineMonotone: FLUDD's voice is largely monotone and electronic.
* MakingASplash: FLUDD lets Mario shoot water at enemies.
* MamasBabyPapasMaybe: {{Gender Inverted|Trope}}, probably thanks to the stork in earlier Mario games. It's obvious to everyone that Bowser Jr. is Bowser's son, and Peach isn't his mother.
* ManEatingPlant: Petey Piranha, of all the Piranha Plants.
* MascotMook: Averted. The iconic Goombas and Koopa Troopas are nowhere to be found in the game. The former is replaced by the functionally identical Strollin' Stu, while the latter only has variants of the turtle appear.
* MirrorBoss: Both Shadow Mario and Il Piantissimo have the same moves as Mario when facing them.
* MindScrew: The secret levels where Shadow Mario takes FLUDD, if not just for the backgrounds.
* MutuallyExclusivePowerups:
** Besides the always-accessable Spray Nozzle, there are 3 secondary nozzles for FLUDD (Hover, Turbo, and Rocket) that Mario can equip. These nozzles cannot be on Mario's person at the same time, and if Mario gets a new one it will replace the old one.
** FLUDD cannot be used when riding Yoshi. While Yoshi can spit juice to functionally substitute for the Spray Nozzle, none of his other abilities replicate the other three nozzles.
* MythologyGag: "Delfino" is Italian for "Dolphin", the development name of the UsefulNotes/NintendoGameCube.
* NoCutsceneInventoryInertia: When you return to Delfino Plaza after defeating Bowser, an "X" graffiti can be seen on the side of one of the buildings during a cutscene, regardless of whether you cleaned it off during the course of the game.
* NostalgiaLevel: The FLUDD-less levels, which strip away all the gimmicks in favor of old-school platforming. The music and some of the backgrounds add to the nostalgic effect.
* NothingIsScarier: If Eely-Mouth traps Mario in its mouth, FLUDD will say "It is dark...I feel fright...".
* OnlySaneMan: The owner of Hotel Delfino is one of the few people who can tell that Shadow Mario is an imposter and not the real Mario.
* PalmtreePanic: Given the nature of the setting, there are quite a few worlds like this. Gelato Beach is probably the purest iteration of the trope in the game.
* PaperThinDisguise: Shadow Mario. Despite his totally blue color and watery texture (and the fact that [[RedEyesTakeWarning his eyes occasionally go completely red]]), he is [[SarcasmMode obviously Mario doing all that vandalism]].
* LeParkour: You can waste a lot of time just running, diving, sliding, and wall-jumping all around the hub or levels.
* PinballZone: The Pachinko Machine level is not quite a pinball machine, but it does treat Mario as the ball.
* PlayableMenu: The file select screen has Mario on a 2-D plane, with the files selected by hitting blocks. Mario can use all his regular platforming moves to play around the blocks.
* PoliceAreUseless: The only time the Delfino Police attempt to do their jobs is when they arrest Mario the wrong guy. The worst example of their uselessness comes near the beginning of the game when Shadow Mario attempts to capture Peach, and Mario has to chase him down. The police not only do nothing to stop the kidnapping, but they still refuse to acknowledge that Mario is not the real criminal even though the entire scene unfolds ''right in front of their eyes'', and prefer to accuse him of slacking off.
* PortalPicture: Most stages are reached by finding a large "M" painted by Shadow Mario that shows an animated image of the next area, spraying it until the goop covering the front is gone, and jumping next to the M. Mario will dissolve into the paint and wind up in the level depicted.
* PortTown: Delfino Plaza is a port town. By the nature of the whole game's setting and story, it's also quite the tourist spot.
* PlantHair: Piantas have a palm tree on their heads.
* RacingMinigame: The three races with Il Piantissimo.
* RecurringBoss:
** Shadow Mario (a.k.a. Bowser Jr.) shows up about a dozen times total. Each "fight" against him consists of [[GetBackHereBoss chasing him down until you've sprayed him with enough water]].
** Gooper Blooper is fought three times, and the only thing that changes is the battlefield.
** The Piranha Plant made of goop has to be fought five times. The first three fights are identical, but the last two increase the difficulty by doubling the amount of damage you need to deal.
%%* RidiculouslyCuteCritter: The sunflowers.
* SaveThePrincess: Subverted: Once Shadow Mario is properly introduced, he'll attempt to get away with Peach. You chase him around town and force him to drop her, however. Peach will subsequently hang around Delfino Plaza, and you can even talk to her. But this is a DoubleSubversion. When Mario gets 10 Shine Sprites, she permanently gets kidnapped for the rest of the game, and she doesn't even return to Delfino Plaza after clearing the game, so Toadsworth and the Toads continue to worry about her.
* SceneryPorn: Definitely one of the game's selling points. Especially when compared to the blocky, primitive polygons of ''VideoGame/SuperMario64''. The environments are rich and detailed, the lighting is excellent, and the rendering of the water is at least as good as in ''[[VideoGame/SuperMarioGalaxy Galaxy]]''. The pop-up (or "fade-in") is also remarkably good, except for some items like coins. The huge draw distance helps add to the game's cohesiveness; you can actually see other locations from different points on the island.
* SchmuckBait: If you reach the end of the poison canal lily pad ride without all the red coins, there's a warp pipe which you would think takes you back to the beginning of the level so you can try again. WRONG! It deposits you all the way back in Delfino Plaza... which means you have to do the long, tedious boat ride with Yoshi all over again just to get back to it. By contrast, if you just kill yourself, you can restart at the beginning of the lily pad course.
* SequenceBreaking:
** Unlocking Yoshi is supposed to be mandatory to beat the game, as a number of Episodes require using him in some fashion and he's needed to give access to Sirena Beach (via eating the pineapple blocking the warp pipe). Abusing glitches and wall clips means that he can be completely avoided, plus this allows for completing levels out of their intended order.
** The warp pipe to Pianta Village is on top of the Shine Gate, which normally requires the Rocket Nozzle (acquired for use in Delfino Plaza a good chunk into the game) to access due to how tall it is. It's possible to scale the Gate without it by doing some mildly difficult platforming.
** You can get the second Shine Sprite in Bianco Hills without obtaining the first one by going straight to Petey Piranha at to the top of the windmill during Episode 1. This gets {{lampshade|Hanging}}d by an NPC at the windmill if you talk to him, as he wonders what you're doing there.
** It's possible get the Episode 8 Shine Sprite of Gelato Beach at any time [[https://www.youtube.com/watch?v=mEYSF_xaT94 by doing a somewhat tricky wall clip.]] Getting it makes all previous Episodes available and allows you to jump straight to Episode 7, the only one of that level that's mandatory to beat the game.
* ShallIRepeatThat: You're given the option to rehear both FLUDD's [[HeKnowsAboutTimedHits explanation of the gameplay mechanics]] and the backstory on the loss of the Shine Sprites. Very few people take advantage of this opportunity.
* ShotgunsAreJustBetter: There's a special attack you can perform in midair (in midair, press the jump button while holding the squirt button) then that spends about 10% of your water in a giant shotgun blast of water with HUGE coverage. If you're willing to spend all your water, it can clean huge areas and end Shadow Mario chase scenes in a hurry.
* ShoutOut:
** The Ricco Harbor level has a [[Music/TheBeatles yellow submarine.]]
** Robert ''Fludd'' was a 16th century mystic and scientist with interest in perpetual motion machines involving pumps, and how blood is pumped.
** Check Il Piantissimo's face texture in the game's files, and you'll see he looks a lot like [[VideoGame/TheLegendOfZeldaOcarinaOfTime the Running Man.]]
** Phantamanta is a reference to the end of ''Literature/TheShining'', in which a shadowy manta-like shape issues from the hotel as it burns, before fragmenting and vanishing. The boss battle occurs near a hotel, like in that novel.
* SpaceWhaleAesop:
** The whole Eely-Mouth bit about brushing your teeth. Yes, it's bad not to, but most people aren't A- A giant eel whose teeth have literally gone completely black, or B- someone whose act of not cleaning teeth pollutes a whole bay with purple acid.
** Pianta Village has another one. Be kind to your pets, or else they'll turn red-hot and go on a rampage, covering the town with lava.
* SpaceZone: Four of the secret levels.
* StealthPun: If you spray the WANTED: MARIO posters in the plaza, they'll give you coins. You're ''cleaning Mario's name''.
* SuddenlyVoiced: As mentioned, this is the first and so far only Super Mario game to have extensive voice acting. Bowser in particular never had English dialogue (except in [[WesternAnimation/SuperMarioBros the cartoons]]) until now.
* SunnySunflowerDisposition: A chapter at Pinna Park gives you the mission to help the sunflowers outside the park. Completing the mission gives you a Shine. Also, if you water them, they give you Gold Coins, making them one of the main sources of coins for the 100-coins Shine of this level. [[note]]Provided you don't take the easy way of spraying all the Bullet Bills for coins in Episode 2.[[/note]]
* SuperDrowningSkills: Yoshi, unlike previous versions, can't swim and if you even so much as touch most bodies of water, he'll disappear. Apparently, this isn't really Yoshi, but a Yoshi made out of water-soluble paint. Specifically, any body of water deep enough for Mario to swim in. Shallow water is okay to walk in, but if it's deep enough to refill FLUDD (like the fountains in Delfino Plaza), and Mario jumps off, Yoshi still melts.
* TakeThatAudience: Losing to Il Piantissimo results in you getting trash-talked with cutting insults.
-->'''Il Piantissimo''': "You pokey little flab-biscuit!"
* ThatMakesMeFeelAngry: "It is dark... I feel fright." Possibly justified, as this is probably the only way FLUDD has of expressing any kind of emotion.
* ThemeAndVariationsSoundtrack: Delfino Plaza, Bianco Hills, Ricco Harbor, and Gelato Beach all use different arrangements of the same melody.
* TightropeWalking: There are many tightropes which Mario can cross and bounce on. Mario may seem like he's always on the verge of falling while on the them, but it's impossible to fall unless you purposely jump off.
* TimedMission: Whenever you revisit one of the secret platforming levels with FLUDD, you can earn another Shine by completing a red coin challenge, which will always be timed. A few of the other levels are timed as well, such as "Scrubbing Sirena Beach" and "Piantas in Need".
* TooDumbToLive: The Pianta in Delfino Plaza who's on fire. Why doesn't he just ''run into the ocean''? Happens again in Pianta Village. ''Right next to the village's creek.''
* UnderTheSea: Noki Bay has a huge underwater area and the water is poisoned on the first visit by an eel's dirty teeth.
* UniqueEnemy:
** {{Subverted|Trope}} with the Red Cataquack at Gelato Beach. Initially there's only one roaming around among the herd of Blue Cataquacks, but from Episode 5 onward there's nothing but Reds.
** There's exactly one Chain Chomp in the game. It's encountered at Pianta Village during Episode 4, and Mario's objective is to calm it down.
* VariableMix: While riding Yoshi, the music of whatever area you're in changes to include drums and other instruments.
* VideoGameCrueltyPotential:
** It isn't ''cruelty'', exactly, but you can have Mario be quite the bastard if you choose. You can run around Delfino Plaza stealing fruit from the vendors or messing up their displays, or simply go around dousing [=NPCs=] with water and jumping on them. They get upset, but they don't do anything to you. On the other hand, this is a surprisingly satisfying way to deal with characters who are rude to you.
** You can drown Yoshi.
** You can use a body slide to actually spread the graffiti and swallow up some of the [=NPCs=], or lure those cute little bubble creatures that come out of the goop to spread the stuff to clean areas (avoid them as they jump on you or it won't work). Go restart the game and have fun with it in Delfino Plaza, or go to the second Petey Piranha mission in Bianco Hills. Lots of potential at those spots.
* ViolationOfCommonSense: One of the best moves for getting around quickly is to spray water at the ground, then dive at that spot. You'll keep drifting forward like you're on a wet slip-and-slide, still have limited directional control, and you'll just keep going until you jump out of it or run into something. That little patch of water sure goes a long way, even on sand, stone, you name it.
* VoodooShark: [[AllThereInTheManual It's explained in the manual]] that the breed of Yoshis found on Isle Delfino cannot swim nor stand water, which are pretty questionable evolutionary traits to develop on a tropical isle, to say the least.
* WalkIntoCameraObstruction: The scene where the Pianta Police go to take Mario away.
* WatchingTheSunset: At the end, on Sirena Beach (where the sun always seems to be setting).
* WhatTheHellPlayer: The guests in Hotel Delfino will complain about Mario barging into their rooms uninvited, and a Pianta woman will chastise Mario for his presence in the ladies' bathroom. Also, if Mario has a bunch of coins when he talks to the janitor in the attic, he'll call him a greedy little coin-grubber.
* WhenAllYouHaveIsAHammer: Mario's FLUDD is used for nearly everything. Taken further with the blue coins; they're entirely optional and almost every single one is "pour water at X" where X ranges from things that are very clever to things that are... less so.
* WhoDares: MARIO! [[MemeticMutation "How dare you disturb my family vacation!"]]
* WingdingEyes: Mario gets hearts in his eyes during the opening sequence while thinking of all the good food the island has to offer.
-->'''Announcer:''' Come enjoy a natural wonderland, to which we've added the world's finest resort facilities, a spectacular amusement park, and...''[[FoodPorn succulent seafood!]]''
-->'''Mario:''' ''[Goes into a trance with the aforementioned heart-eyes]'' Ooooh~!
* WizardNeedsFoodBadly: Yoshi dies (Or [[NeverSayDie "heads for home"]], according to the manual) if you don't feed him enough fruit.
* WorstNewsJudgmentEver: For some reason, Delfino Emergency Broadcast System deems an egg on a roof worthy of an emergency bulletin. We admit that Yoshi eggs are rare and very interesting, but emergency alert worthy?
* YouShouldntKnowThisAlready: Even if you know the trick for opening up the western ruins in Noki Bay, you will ''never'' be able to do so in episode 1... because Mario doesn't "learn" how to do it until episode 2. This applies even if you come back to episode 1 after completing episode 2.
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->'''''SHINE GET!'''''