[[quoteright:309:http://static.tvtropes.org/pmwiki/pub/images/Yume2kki_3634.jpg]]
[[caption-width-right:358:Urotsuki in the [[HubLevel Nexus]].]]
A collaboration project between multiple users of the 2ch ImageBoards, Yume 2kki is one of the first VideoGame/YumeNikki fangames out there. It stars a girl named Urotsuki who, much like Madotsuki, has really, really messed up dreams. Notable for being outright huge in comparison to even the first VideoGame/YumeNikki, and there's still lots and lots planned.

The game can be found [[http://dic.nicovideo.jp/a/%E3%82%86%E3%82%81%E3%81%AB%E3%81%A3%E3%81%8D%E6%B4%BE%E7%94%9F here]] and updates very frequently.
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!!This game provides examples of:

* AcidTripDimension
* AbsurdlySpaciousSewer: Multiple! One of them even has a bar.
* AlternateCharacterInterpretation: Since what Urotsuki does is up to the player, this is natural. But ones particularly invoked by the game are that she's the most game savvy out of the various player characters due to the number of minigames she has, as well as being the drunk of the group, since she's the only one who can potentially drink until she passes out. And of course, the usual sociopath/depressed/suicidal interpretations.
** Two of the endings imply perhaps the strangest thing of all, that Urotsuki is [[spoiler: simply an ordinary girl who has weird dreams.]]
* AmazingTechnicolorPopulation
* AmusementParkOfDoom: A very large one. Most of it is just somewhat ''off'', more than being directly threatening.
* ArtificialLimbs: Like with Yume Nikki, a number of effects replace Urotsuki's head with various objects. For Urotsuki, these are the Telephone, Eyeball Bomb, and Tissue Box effects.
* BadGuyBar: In the world where you get the Trombone Effect. The bar is practically filled with every chaser from the game and pulling the chainsaw on any of them will bring you to a secluded area. It's only accessible if you equip the Stretch Effect.
* BearsAreBadNews: Teddy Bear Land, which is full of cardboard teddy bears either covered in blood, mutated or both.
* BodyHorror: Expected in this type of game. Some notable examples include:
** The Marginal Vivid Worker, which that can grant you an effect that makes you pale, bow-legged, and bleeding.
** If you stay in the hotel hot springs too long, you'll turn into a hideous black, white, and red blob-like creature that can barely move.
* CallASmeerpARabbit: The blue grass area has green things called dogs. They bark like dogs, but otherwise are not dogs at all.
* ChainsawGood: Urotsuki's weapon of choice.
* CircusOfFear: Where the {{Monster Clown}}s lure children to their deaths. There's possibly a few of them depending on what you call a circus, each with their own unique stylings. Some are quite expansive.
* CloningBlues: A room inside Block World has a machine that clones Urotsuki NON-STOP if you interact with it.
* CoolBike: Urotsuki's preferred method of travel is a motorcycle. She can even pop a wheelie on it.
* CosmeticAward: The wallpapers are this, serving no purpose other than to give you something different to look at when you're accessing the menu. Actually averted in the case of the effects, as every single one seems to either serve a purpose, get a reaction from at least one [=NPC=], allow access to otherwise inaccessible areas, and so on. Some can actually directly lead to gaining other effects.
** The later-introduced collectable menu themes as well.
* CreepyDoll: A clown-summoning faceless one can be found in the Circus Tent.
* CrueltyIsTheOnlyOption: There are some instances in the game where you have to kill [=NPCs=] to get past them, and one case in particular in which it's required for an effect. Also, you can't interact with Aoshiru [[spoiler:without killing him.]]
* DebugRoom: DummiedOut.
* DenserAndWackier: The bike is replaced by a motorcycle and the knife is replaced with a chainsaw. Many of the NPC's aren't silent and creepy like the ones in the first game, either. Some will dance if interacted with, one has a pet telephone, and one's a bartender that will serve you drinks[[spoiler: until you actually pass out.]]
* TheDevTeamThinksOfEverything: Going along with the staggering size, there isn't a single useless effect in the game, even if some serve much less of a purpose than others. Also notable is that an English speaking member of the dev team is actually asking for feedback on the game on Uboachan.
* DreamPeople
* DreamWorld
* DualWielding: Not in the conventional sense, but certain effects can be combined. For example, the bike and wolf effects, and the pigtails and glasses effects.
* DummiedOut: Lots and lots of stuff, mainly content still in development, and the debug room so it can't be accidentally stumbled upon during normal gameplay.
** There's actually a JumpScare that used to exist but was removed, though the graphic used for it remains in the game's files. Probably because it [[NightmareRetardant wasn't actually as scary as intended in addition to being a cheap scare out of nowhere]].
* LockedInTheDungeon: In the AmusementParkOfDoom. The trip down there is one long FridgeHorror moment. And the {{Monster Clown}}s lock the doors behind you.
* EverythingsBetterWithPenguins: The Penguin effect.
* EverythingsBetterWithRainbows: The Rainbow effect makes Urotsuki rainbow-colored. It can also produce rainbows in rainy areas when used, among other uses.
* EverythingsSquishierWithCephalopods: Tako Otoko.
* ExactProgressBar: You can check your percentages of effects, wallpapers, etc. on Urotsuki's computer.
* EyesAlwaysShut: Urotsuki, though some effects subvert this trope.
* EyesDoNotBelongThere: Megusuriuri, but he is neither scary nor malevolent.
* FacelessEye: The Eyebomb Effect and the people in the Road Maze.
* TheFerryman: You can find one in The Docks.
* {{Flight}}: The space suit and fairy effects provide this, which allows Urotsuki to cross gaps and other areas marked as unobstructed air.
* FlyingSaucer: Randomly appears in a building in the Broken Faces Area. [[spoiler:If you enter it and pick the apple on the control screen, you will find yourself on the path to the Red Riding Hood Effect.]]
* FlyingSeafoodSpecial: The area that gives you the Spacesuit Effect has these floating around in the background.
* FountainOfYouth: Somewhat. The Child Effect de-ages Urotsuki into a kid.
* FungusHumongous: One of the nexus worlds is a world with lots and lots of mushrooms all about.
* GardenOfEvil: In one of the more isolated areas of the game, you will come across this along with a [[{{DeadGuyOnDisplay}} Dead Girl On Display]] and a [[{{WhenTreesAttack}} Laughing Tree]].
* GenderBender: The boy effect changes Urotsuki's gender.
* GiantSpider: If you look through all of Bug World, you will find one just waiting for you to come.
* GigglingVillain: Can be heard in certain places of the game.
* GirlishPigtails: The Twintail effect. Has the potential to become PrehensileHair as well.
* GirlWithPsychoWeapon: Urotsuki with the chainsaw.
* GogglesDoSomethingUnusual: The glasses effect tends to make invisible things visible.
* GoodGuyBar: In the Japanese Ghost Village Area. Where Urotsuki can get so drunk she ends up passing out, but not before some lovely imagery.
* GottaCatchThemAll: Wallpapers. There are over 150 of them, each with their own unlock method.
* GrowsOnTrees: Pizza, among other things.
* [[HalfTheManHeUsedToBe Half The Girl She Used To Be]]: Can happen to Urotsuki in a room in the dream apartments. Played entirely for humor, as she can still walk around and there's no blood or gore associated with it.
* {{Hikikomori}}: Urotsuki, in tradition to the original game. [[spoiler:The endings often avert this, though.]]
* ICantReachIt: Urotsuki would refuse to swim across a body of water, even though she has no problems going underwater or in a hot spring.
* IllBoy: Aoshiru. [[spoiler: He gets killed if you interact with him. Might double as a WheelchairWoobie]]
* ImageBoards: Has [[http://uboachan.net/tkki/ its own section]] on Uboachan.
* ImprovisedWeapon: Many npcs can be killed with the lantern effect. [[BlobMonster In fact, some NPCS can only be killed this way.]]
* IncrediblyObviousBug: One event involves Urotsuki [[ItMakesSenseInContext killing a phone and then replacing it by using the Telephone effect]]. This is even required, as it gets you the Twintail effect.
* InstantBandages: The Cripple Effect, which has Urotsuki's arm put in a sling.
* {{Invisibility}}: An effect with two states: barely visible, and completely invisible except for shoes.
* JumpScare: In one area, there's a pair of pillars that represents a doorway to an area that instantly transports you to an area with much more tense music and things running around extremely fast. There's no danger in this area, but the sudden change is enough to shock.
** There's a chance that if you turn on the TV in Urotsuki's fake room, you will be greeted by basically [[{{VillainTeamUp}} all the chasers in the game]] with no place to escape. [[spoiler: Though there's always the Medabomb Effect to handle that.]]
** Don't investigate the lamp in the circus tent if [[spoiler:you fear clowns]].
* [[KillerRabbit Killer Sheep]]: A seemingly harmless lamb beheads Urotsuki if you try to kill it.
* KillItWithFire: The Lantern Effect could be used to burn [=NPCs=] that are blocking passageways.
* KilledOffForReal: [[spoiler: In the ending where Urotsuki leaves her house, [[FridgeHorror Aoshiru's not present.]]]]
** In a straighter example, if you kill Painter-kun, he does not respawn. Same goes for the eyeball Masada and the box girl [[spoiler:although you can't go back to check.]]
* KimonoFanservice: The Maiko effect, naturally.
* KonamiCode: [[spoiler:There is a dark room with two statues and four exits, that when interacted with in the Konami Code, leads to a tribal village. (The one on the left is B.)]]
* KungFuProofMook: The blobs in the Sky Kingdom can't be chainsawed. They have to be burned with the Lantern instead.
* LetsDuet: If you interact with Elvis Masada while equipping the Trombone Effect, an instrumental duet will follow.
* LighterAndSofter: It's still as bizarre as ''VideoGame/YumeNikki'', but it's atmosphere is generally less creepy and it's not as depressing. Most of the time.
* MacroZone: The Block World becomes this once you eat one of the cheeses in it.
* TheMaze: Quite a few, most notably a first-person one.
* {{Meganekko}}: The glasses effect.
* MoneyForNothing: Money is somewhat more useful than in Yume Nikki, as it can be used to buy, for example, balloons at the amusement park, or alcohol at the bar.
* MoneySpider: Most of the [=NPCs=] could be killed for money, though they [[RandomlyDrops drop at random]].
* MiniGame: Urotsuki has several games on her console. She can even unlock an extra one.
* MultipleEndings: Several, most of them highly contradictory and [[GainaxEnding gainaxy]].
** one has [[spoiler:Urotsuki look like she's about to mirror VideoGame/YumeNikki's ending, only to ditch the mini stairway at the last second, and leave her room. [[CrowningMomentOfHeartwarming The credits show her peacefully biking]].]]
** another has her [[spoiler:actually make the jump....but she turns out to have been a prize in a UFO Catcher (prize grabber) machine....[[GainaxEnding yeah]]. ]]
** the third has her [[spoiler:pinch herself awake while 'awake' in the real world. She wakes up yet again, and is on the floor with a pile of books. Implying the whole thing was a literature-inspired dream-within-a-dream.]] All of these have different ending conditions, of course.
** the fourth has [[spoiler:her setting up the staircase, and then....a train pulls up to her balcony, and a black creature onboard beckons her on to the train, which then departs.]] [[GainaxEnding Ehhh?]]
** another has [[spoiler:the strange implication that Urotsuki's room is infected with some kind of invisible ''something'' that turns Urotsuki into a monster... [[EpilepticTrees maybe?]]]]
** There are also a couple false endings you can encounter through random chance that just make things more complex.
* NoodlePeople: The Tall Effect, in addition to the [=NPCs=] that display this trope.
* NumberOfTheBeast: The computer (in Urotsuki's dreams) says [[DoubleTake 6:66]].
* ObviousBeta: Moreso than most fan games. Gameplay-wise, you'll find lots of paths that are blocked in some way and lack warps. The title screen itself even has a 'this game is under development' message. It still works very well, however.
** Outside of the game, there's an insane amount of placeholder maps, events, etc. that have no content whatsoever, as well as incomplete and under development maps.
* OldSaveBonus: If the game detects an older save, it will update it as well as possible to avoid problems with things not existing, being changed, and so on. So no having to get everything again/abusing the debug room.
* OurFairiesAreDifferent: The Fairy effect is of the "Disney" variety.
* NinjaPirateZombieRobot: Some of the stuff in the game can be described in this manner. For example:
** Monster Clown Snake Women.
** Wolf Biker Girl.
* PalmTreePanic: A couple of areas in the game display this trope, sans palm trees.
* PortalPainting: A number of these can be found in the Art Gallery area.
* PerpetualBeta: ''Yume 2kki'' has been in development for several years now, with updates coming out irregularly every few months, sometimes much faster. There is no sign that it is nearing completion. Given the nature of the gameplay and the number of contributors, there's also no need for it to.
* PettingZooPeople: The wolf effect is stylistically similar to Yume Nikki's cat effect, only instead of attracting [=NPCs=] by being a lucky cat she makes them flee by howling.
* ThePianoPlayer: Elvis Masada, who plays a tune if you interact with him.
* RandomlyDrops: Money is still something you get from randomly killing things. If you have enough, you can allow Urotsuki to go to a bar and get drunk.
* RandomEvent: The "Bleak Future" / "Glitch Ending" event has a whopping 1/64 chance of triggering when you sleep in the bed in the replica of Urotsuki's bedroom in the Dream Apartments. Have fun!
** There's a special place you can rarely go when you wake up from the dream - it's a ''1/818'' chance. Yes, ''really''. It used to be easier to activate but the developers wanted it to be more special.
* {{Retraux}}: Monochrome GB World. Even the menus change.
* SchoolSwimsuit: There's a room that allows you to change into one of these.
* FanSequel [[SequelEscalation Escalation]]
* ShoutOut: There's a room in the Apartment Complex where you can try on outfits belonging to the protagonists of other Yume Nikki fangames.
** Using the Boy effect, Urotsuki can use various bathroom spots. [[{{It}} Almost always this will spawn a monster clown in the main bathroom.]]
** If you interact with a blank window after moving through the Never-Ending Hallway long enough, you'll encounter a replica of [[VideoGame/YumeNikki Madotsuki's room]] if it were located in [[{{VideoGame/Earthbound}} Moonside]].
** Speaking of Moonside, the Highway area has the Neon Highway, which has a similar neon aesthetic and surreal atmosphere.
** There are various Yume Nikki references, lots of characters and environments designed to resemble the original areas. Maybe Urotsuki is a fan?
* ShrinesAndTemples: An area accessible through the Hand Hub.
* SoundtrackDissonance: In the brightly colored Mushroom World, there is a warp to an alternate Mushroom World with much a much darker appearance, with bloodstained mushrooms, some of which have an eye for a cap. Both worlds have the same cheery music.
* SpacesuitsAreSCUBAGear: The Spacesuit Effect.
* SpiritualSuccessor: Besides the obvious fact that the game is a spiritual fangame to Yume Nikki, one very large mass of areas created by a certain developer almost seems like a more linear (but graphically improved) successor to [[LcdDem his own game]].
* SpringCoil: Urotsuki's legs turn into coils if you have the Spring Effect equipped. Bane Jack (the person you get the Spring Effect from) also has this, albeit having only one coil under his torso.
* SpookySilentLibrary: One of the worlds accessible from the nexus.
* SquashedFlat: The result of falling into the trap in the AmusementParkOfDoom's dungeon. Followed by suddenly waking up.
* SurrealHorror
* SurrealSymbolicHeads: Urotsuki can dream her own into the form of a telephone, a box of tissues, and [[EyeScream a bomb with an eye]], each with different effects.
* [[SwissArmyWeapon Swiss Army Effect]]: A number of functional effects serve more than one purpose. The fairy effect grants flight and allows Urotsuki to enter small openings. The lantern provides light and can be used to kill various [=NPCs=]. And of course, all effects cause [=NPCs=] to react in various ways, some more than others.
* TheMirrorShowsYourTrueSelf: There is a window in the underwater maps that might hint on Urotsuki's life.
* TomboyishSidetails: Urotsuki.
* TrailOfBreadCrumbs: The tissue box effect serves this purpose, allowing Urotsuki to pull a tissue out of her head and place it on the ground.
* TrophyRoom: The Effects Room.
* UnderTheSea: A couple of different areas are completely underwater.
* UnlockableContent: Various wallpapers for Urotsuki's computer as she gets to certain points/activates certain events, among other things.
* VideoGameCrueltyPotential: Every single bit as present here as it is in Yume Nikki. There's also a number of events where Urotsuki can do some pretty mean things.
* VideoGameCrueltyPunishment: There's an area where you can cause a person in a well to fall to their death by cutting a rope. Doing so will bar any other way out and get you chased by countless monsters until some come at you from the front, which forces you awake.
** There's also the sheep, as mentioned in the KillerRabbit entry.
** In the Japanese Ghost Village, if you kill the person who gives you the broken arm effect, the area becomes filled with the shadow ladies.
** In the forest area, if you hurt the sane Shadow Lady there, escape down the hole, and return, the forest will become filled with malevolent Shadow Ladies and will be dark.
** Killing Megusuriuri will cause the EldritchAbomination in one of his cabinets to fester and mutate his office and Box-chan. After seeing this, you can never enter the office or see [[{{Moe}} Box-chan]] again.
** In an area close to that, stabbing an eyed creature can transport you to a place with a giant head with a very hyperactive eye laughing, and you will wake up after a while there.
** If you chainsaw the [[MonsterClown clown]] in the building of the Guts World, it will mug you. If you don't have enough money, it will send you to the creepy head room as mentioned above.
** If you try to chainsaw the man in the fox mask, he will FlashStep behind you; he might counter attack and send you to an isolated area.
* ViolationOfCommonSense: In the CircusOfFear dungeon-like area in the AmusementParkOfDoom, you have to first traverse a long corridor that contains hallways with a statue of a chaser in the middle of each. Even if you have no idea what is about to happen, you know it can't be good, [[OhCrap especially when you get to the end]]. Clowns stop you from leaving, though.
* WideOpenSandbox: UpToEleven.
* WombLevel: One area in the game looks mostly organic and has things that vaguely resemble spines floating about.
** The Intestines Maze, which resembles {{VideoGame/Yume Nikki}}'s Hell.
* TheWikiRule: [[http://yume2kki.wikia.com/wiki/Yume_2kki_Wiki Here.]]
* YouGottaHaveBlueHair: Many NPC's, notably Gakuran, a blue-skinned boy with purple hair.
* YourHeadAsplode: Happens whenever Urotsuki uses the Eyeball Bomb to return to the nexus.

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