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It's noteworthy for its large number of arcade machines, including a variety of titles. Some arcade machines contain games that require high-performance PCs, mobile devices, or video game consoles, Some lost video games like Polybius and Gizmonauts, among others can also be found here intact. Due to the nature of the games in question, it is unknown if the level is pulling these games from the Frontrooms or creating them itself. There are even some non-game programs available that are in an arcade machine. Facebook and Microsoft Word, on-top of obscure programs like Cellebrite UFED4PC and Google Calendar for Samsung Smart TV (2010/2011) have be found here. \n \n \nSome other found applications like Apple's App Store are largely unfunctional, as they were not made for the device and thus cannot download apps. Other noteworthy non-video games like Pinball Machines and Air Hockey are also relatively common, but only in select areas. Like in a typical arcade, the outside area represents a parking lot—cars, streetlights, and trees can be seen through the windows. However, the windows’ strength makes it incredibly difficult to enter that area. This outside is considered a [[Level 3999.5-B|sub-level]], but very little exploration has been done there. There is only currently one documented wormhole in reality that will lead straight to this level in the frontrooms, which is in the middle of the ocean, at Latitude: -60.96187, Longitude: 20.21726, Distortion: 4.24. Jump into the water, and expect neon lights instead of the ocean. You will still be wet.\n \n{{Blurimage|file=405 Mall.jpg|hovertext=\"Maybe get a treat\"|caption=\"Make everything go back the same\".}}\n \nWhen you enter this level, you will be given an indestructible sheet of paper with a list of tasks to complete at the front counter. Completing the instructions will allow you to exit The Backrooms. These tasks are random and could be things like finding, eating, or using a certain item, entering and exiting a different level, or killing a certain entity, completing arcade games, among others. You will also be given a red button that will instantly take you back to this level other than if you’re in The Void along with a few certain levels, since some of the tasks will require you to go to different levels. If you lose the list or the button, it will teleport and appear on your person again. If you exit through the glass door without completing your tasks, you will be sent back.\n\n{{Blurimage|file=Level 3999-B 2nd image.jpeg|hovertext=\"Maybe we could have fun?\"|caption=\"Lets play some games\".}}\n\nThe arcade machines are durable and resist to damage, though some feature noticeable dents and other small signs of wear. To play a game, simply insert any coin-shaped item, as the machines can take any currency or object that fits. It has been noted that as wanderers become invested in the game, lasting negative mental effects of the Backrooms are mitigated, and wanders have described a sense of ease and normality. Any attempt to damage the machine has resulted in the attacker becoming unconscious. Fortunately, there has been no long-term damage recorded. Regardless, attempting to cause damage or dismantle the machines is not advised.\n\n{{Blurimage|file=Also another image of Level 3999.webp|hovertext=\"how was it?\"|caption=\"That was a great movie\".}}\n\nThe arcade machines may lose their anomalous properties if brought out of the level, but the games or applications will still function and operate the same. '''Level 3999-B''' is often said to evoke a feeling of security and comfort in wanders.\n\nAmong this level, you can also find a prize booth. This prize booth gives safe food + almond water, which replenishes every few hours; however, it also gives prizes unique to that level, such as plushies and toys. Each of these items have a price label either on it or near it. Like the arcade machines, these plushies and toys give off feelings of comfort and nostalgia, even if these toys and plushies are nonexistent in the front rooms. All of these items have a cost of around 1-10 tickets, the food and almond water being the cheapest. To pay for the items, all you must do is put the correct number of tickets into the ticket box on the counter of the prize booth, and take whatever you paid for. No one exactly knows what happens if you do not pay for your items, as each arcade game will give more than enough tickets each game. It's noted that once the tickets go into the ticket box, they disappear, and the most common theory is that these tickets go back to the arcade machines.\n\nIt has been noted more than once that meteorites have rained down from the ceiling, at sporadic times. However, no damage to the level or any person has ever been recorded. Researchers have hypothesized that they are simply illusions created by the light structures of the building, though no formal conclusion has ever been reached.\n\n'''Level 3999-B''' is split into 4 areas, which are as follows: '''3999-1''', '''3999-2''', '''3999-3''', and '''3999-4'''. The areas are similar, but have some noticeable differences. '''3999-4''' took the longer to discover. It is darker and more liminal than the rest.\n\n==Colonies and Outposts==\nThere are a lot of colonies and outposts, but the United Azeutian Empire's Colony is the biggest.\n\n=== United Azeutian Empire Colonial Territroy of Jeperei ===\n\n* The Biggest Colony of this Level\n* Friendly\n* Open for Trading\n* Open for new Wanderers to Join\n* Can be Found Everywhere\n* Fully Supplied\n* Pop: 500,000\n\n==Entities==\nSome friendly entities can be found in this level, but not a lot. The most common ones are [[facelings]]. Frowners can also be found in the darker areas of '''3999-4'''.\n\n==Entrances and Exits==\n===Entrances===\n\n*Tell the plush dino in [[Level 18]] you want to go to level 3999 (aka this level)\n*Noclip through a large, purple unstable wall in [[Level 11]]. This wall is very rare to appear.\n*Run '''TRUEEND.EXE''' in [[The End|The End's]] computer.\n*Enter a neon blue wall in [https://backrooms.fandom.com/wiki/Level_153 Level 153]. This wall is also rare to appear\n*If you see an arcade machine with the game Super Mario Bros on the level [[Cluster of Corridors]], (Which is very unlikely), you will get to the '''Level 3999-B'''\n*'''Level 3999''' can be acessed through a glass door with the neon number '''3999''' in [[The Hub]].\n*Jumping into a cube on [[Level 36,148]] will send you here\n*Finding inner peace in [[Level .]] will have a 50% chance to lead here.\n*Going through a pink door in [[Level 3999|the other Level 3999]] will lead to this level.\n*Going through a pink light in [[Level 592]] will lead here.\n*Complete the \"race\" in [[Level 999]] with a lot of time remaining. This is very hard to do.\n* Going through the door at the end of the snake queue in [[Level 761]] will take you here.\n*Starting an arcade machine labelled \"Streetlights\" will take you to [[Level 742]].\n*Heading through Door 1 in [[Level 561]] leads to this level.\n*Go back inside from the glass doors in [[Level 3999.5]].\n*Go through the door at the end room of [[The Laserscape]].\n*Press Alt+Tab+F7 on any computer keyboard in [[Level 1216]].\n*Survive all the tests in [[Level 2872]] to teleport here\n*Using one of the phones in [[Level 592]] will get you teleported here, it takes a couple of tries though.\n*Finding an arcade on [[Level 37.01]]\n*There is a high chance exiting [[Level 3998]] transports you into this level.\n*There is a small chance of that wandering through [[Level Critical]] long enough would make you end up in here.\n*Entering the door in \"The Best Room\" in [[Level 193]] has a 33.3% chance of leading to this level.\n* There has been only 1 instance of someone falling into the level from [[The Frontrooms]]\n*Score 20 strikes a row in [[Level 4999|Level 4999's]] bowling alley.\n*Going through the pink door at the end of [[Level 5500]] has a 0.1% chance to bring you here.\n*In the working RAV4 in [[Level 811]], if you ask Google to navigate you to the Frontrooms, there is a 2% chance of being sent here.\n*Playing an arcade game named \"'''The True Ending'''\" in [[Level 793]] and getting a score of 3999 will send you here.\n*Find a very rare arcade machine in '''[[Level 11875]]''' named \"'''The True Ending'''\" and start it up.\n*Go through a pink door in [[Level 757]] to be sent here.\n*Playing \"3D Pinball Space Cadet\" for 10 hours in [[Level 2002]] will send you here.\n* Taking the correct path 10 times in a row in [[Level 1018]] will lead one here.\n*Reaching the 50-mile mark in [[Level -250]] will make one unconscious, where they will then have a large chance of waking up here.\n*Use command \"/3999\" in [[Level G1]] will bring you here\n*Opening Neon Door in [[Level 15358]] will bring you here\n*Exiting [[Level 244356359867345896743598635936654798645098435^^^^^^^^6663285245724832]] has a chance to send you here\n*If the sewer is blue in [[Level Balkan 2]] and entering in sewer, sewer will bring you here.\n*In [[Level ℵ₁]], going through a purple door will take you here.\n*in [[Level 894]], going in a house has a chance to take you to a random level, because there are infinite levels in the backrooms, the chance of it sending you here are like 1 in infinity. If you have already been to this level, you can find a house that looks like level 3999 and no clip into it and you will be here.\n===Exits===\n====Usual Ways====\nThis level is known for being one of the few known exits back to reality. There are many different possible outcomes. \n\n*Completing your tasks and walking through the glass doors will send you to [[the Frontrooms]], sending you back to where you were before coming to the Backrooms. If you have already escaped via this method to the Frontrooms, you have a chance of being sent to [[Level 3999.5-B]]. Scream \"I WANT TO GO BACK\" to test if you are in this level or not. \n**You have a chance of entering [[Level MEP-1]] when leaving via this method, if you have escaped before or not. There have been reports of the existence of [[Level MEP-2]] that have only shown up as recent as August 2023, and have only occurred so far to people who have never escaped via this method before.\n*If you enter a hatch on the ceiling emitting purple lights playing [https://www.youtube.com/watch?v=_2v3atA4jgA P][https://www.youtube.com/watch?v=9dlMJ709ybY&t=2s e][https://www.youtube.com/watch?v=6WNHEo7idB8 a][https://www.youtube.com/watch?v=ou-rVp6EbhM c][https://www.youtube.com/watch?v=LUiFGrQOu_o e][https://www.youtube.com/watch?v=epaEPf7gOwA f][https://www.youtube.com/watch?v=dxKmowmETo4 u][https://www.youtube.com/watch?v=xd4xOkfn0PY l] Music to enter [[The Great Lakes]]\n*If you noclip to the heart sticker you will end up in [[Happy Room]] (Note: This is highly discouraged as Happy Room might be a trap)\n*Noclipping through a black wall in sector '''3999-4''' will lead to [https://backrooms.fandom.com/wiki/Level_3999.1?so=search Level 3999.1-B].\n*Grabbing a neon light and breaking it will lead you to [[Level 3999.2-B]].\n*Having went to [[the Frontrooms]] already once before via the glass doors can cause a 50% chance to bring you to [[Level 3999.5-B]] instead. If this happens, you can return an try again without needing to do more tasks.\n*No-clipping into some objects can lead to [[Level 561]].\n*No-clipping into an arcade machine containing nature will lead you to [[Level 4004]].\n*No-clipping into the floor will send you to [[Level -740]].\n*No-clipping a puddle of water that may appear from time to time in the arcade will take you to [[Level 4000]], also known as the start of [[:Category:Cluster V|Cluster V]].\n* Find a '''\"seemingly odd window/door\"''' and no-clip through it to enter [[Fraudulent Reality (Level 1765)|Level 1765]]\n*Open the Neon Blue Door will bring you to ██████.\n*No clipping to green wall will bring you to [[Level 15358]]\n*Finding an orange door saying “THE POINT OF NO RETURN” and going in will lead you to [[Level 9998]].\n*There is a great probability that a chess will appear in the cafe, take the white king, and you will be teleported to [[Level 3997]].\n* Taking an elevator made of stone will cause it to crash and lead to [[Level 9223372036854775807]]. This elevator is very rare to appear, however.\n* Find a glass door with the Windows XP wallpaper in it and open it to enter [[Level 779]], note that the door will disappear.\n*Jump into a white pool of paint to enter [[Level 10.001]]\n* Open a front door that looks like a house and jump in to enter [[Level 148-B]].\n*Kill somebody, doing so will teleport you to [[Level X1]]\n*[[Level -3999-B|invisible]]\n*Jumping into a puddle will take you to [[Level 4000-B]].\n==== Arcade Machine Ways====\n*Playing the ''Saints Row 2: Zombie Uprising'' Mini game with cheats enabled will lead to [[Level 820]], if you do not get deemed \"evil\".\n*Noclipping in an arcade machine running of '''Phasmophobia''' after winning a game of it will bring you to [[Level 947]]\n*Finding an old, rusted arcade machine and no-clipping into it will bring you to [[Level 3999.2-B]].\n*In extremely rare circumstances, each region of the level will transition, resulting in you appearing in [[Level 94]] without the assigned note you were given, meaning it is infeasible to enter [[the Frontrooms]] unless you enter '''Level 3999''' again.\n*Noclipping into any device running ''Spore'' or ''Stellaris'' after playing for more than 30 minutes will lead to [[Level 949]].\n*Having completed half of your tasks, type \"'''./CallCenter'''\" into the console of any computer, it will lead into '''[[Level 1033]]'''\n* Noclipping into the arcade immediately after solving a question in a math-related arcade game will send you to [[Level 7317]].\n* Noclipping in any device running ''Super Mario Run'' after playing for more than 2 hours will lead to [[Level 7191]].\n*Noclipping into any game about phobias after playing for more than 2 hours may lead to [[Level 2011]].\n*Noclipping into an arcade machine called “Pristinely Abyss” will lead to [[Level 🧼]].\n*Choosing Ending C on ''Grand Theft Auto V'' will have the side of the arcade machine open up like a door that leads to [[Level 1738]], as Hemsworth City takes inspiration and influences from Los Santos.\n*If you use known cheats in any arcade machine, the level or the Backrooms itself has a chance of having you be deemed \"Evil\", and then [[Press Start|you'll have to play the game to leave]].\n*Attempting to play the hidden ''Unnamed Arcade Machine'' may cause you to noclip into it, and bring you to [[Level 84]].\n*Noclipping in an arcade machine running DOOM! will teleport you to [[Level 552]].\n*Obtaining 1st place on the advanced stage of the ''Daytona USA'' arcade cabinet, then noclipping into it teleports you to [[Level 2236]]\n*There is an arcade machine that is smaller than the other arcade machines. It is black and has the word “NULL” imprinted on the side in a white font. It has 3 controls. A joystick that does nothing, a red button with an exclamation mark on it, which (surprisingly) does nothing, and a black button, that, when pressed, transports the wanderer to [[Level 717]].\n* Completing at least one hundred games and then no-clipping into the prize booth has a chance to send you to [[Level 1913]]\n* Noclipping in an arcade machine running The Simpsons Bowling after playing for 1 hour will no-clip you to [[Level 509]]\n* Noclipping in an arcade machine running ''Rollercoaster Tycoon'' after playing the game for a long period of time will send you to [[Level 793]].\n* Losing a game of Call Of Duty, then noclipping into the machine will lead you to [[Level 8440]].\n* Noclipping in an arcade machine running \"Wheel of Luck\" will send you to [[Level 1515]]\n* Noclipping into an arcade machine running \"Garry's Mod\" will send you to [[Level 380]]\n* Noclipping into an arcade machine running \"Let's Go! Anpanman: Popcorn Factory\" will send you to '''[[Level REDACTED|THE DOWNROOMS]]''' '''certainly''' if you have played \"Rocket League\" for 30 minutes or more in this level. '''DO NOT ATTEMPT TO NOCLIP INTO THAT ARCADE MACHINE EVER EVEN IF YOU HAVEN'T PLAYED \"ROCKET LEAGUE\" HERE, OR YOU'LL BE PERMANENTLY TRAPPED IN''' '''THE DOWNROOMS''' '''DUE TO ITS NATURE.'''\n* Noclipping into an arcade machine running \"Minecraft\" Java Edition will send you to [[Level G1]]\n* If you find a light switch, turn it off, and noclip into it, you will be sent to [[Level 6]].\n* There's 0.0001% probability of noclipping into an arcade machine running any demoscene works sending you to a random habitable level with its level number higher than 12↑↑100.\n* Completing a game about a mountain after 1000 or more attempts will lead to [[Level -45]].\n*Finding a Roblox arcade machine and joining Bloxburg on it will put you unconscious and leading you to waking up in [[(JOKE) Level Bloxburg]].\n*Finding a Cars game arcade machine will lead to [[Level 999]].\n\n==Credits==\n'''Original page, from the main wiki can be found [https://backrooms.fandom.com/wiki/Level_3999 here].'''}}\n[[Category:Levels]]\n[[Category:Safe Levels]]\n[[Category:Class Habitable]]\n[[Category:Ending]]\n <<[[Level 3998]]|'''Level 3999-B'''|[[Level 4000]]>> \n\n[[Category:Levels]]\n","url","link_url","/p/0yyp4s6vyrjh6rsqfjrx","versioned_link_url","/p/0yyp4s6vyrjh6rsqfjrx/1","yapping","Here is a plan to create an interactive web page based on your prompt.\n\nI will create a main HTML file, a CSS file for styling, and a JavaScript file for interactivity, primarily for handling the background audio. I'll also generate the necessary image and audio assets to bring the \"Level 3999\" arcade theme to life.\n\n### Asset Generation\nTo build the visual and auditory experience, I will generate the following assets:\n\n```background.png\n```\n```blur_image_1.png\n```\n```blur_image_2.png\n```\n```blur_image_3.png\n```\n```blur_image_4.png\n```\n```background_music.mp3\n```\n\n### Code Implementation\nI will now lay out the code for the web page.\n\n```index.html\n```\n```style.css\n```\n```script.js\n```\n","cursor","eyJpZCI6IjB5eXA0czZ2eXJqaDZyc3FmanJ4In0","token","included",[174],{"_64":175,"_100":66,"_176":-5,"_177":55,"_178":55,"_179":55,"_180":95,"_181":95,"_182":95},"project_permissions","user_id","can_edit","can_delete","can_edit_members","can_view","can_list","can_participate","routes/browser/layout","actionData","errors"]