The newly added Hard Boiled Mode has a cryptic phone call instead of the usual greeting by Flumpty.One Night at Flumpty’s starts with the following sentences from Flumpty ”Hello! I’m Flumpty.The game used to be made in the first GameMaker Studio, until it was updated in Version 2.6.0.Despite that, these are still present in the older version of the game available on Game Jolt.However, due to copyright reasons, these are not present in the newer version of the game, as well as on consoles and mobiles. One Night at Flumpty's used to feature numerous easter eggs and jokes from different franchise, such as Donkey Kong and Winnie the Pooh.
The game will also soon be ported to game consoles as a bundle at an unknown time.
The game was then ported to Android and iOS devices by Clickteam on October 31 and November 18 respectively. With this update, One Night at Flumpty's received an addition of Hard Boiled Mode.
On the same day, Jonochrome updated the first two games in the series on Game Jolt, removing all copyrighted characters. On August 22nd 2020, Scott Cawthon announced The Fazbear Fanverse Initiative, and with it came the announcement of the inclusion of the One Night at Flumpty's series and the making of One Night at Flumpty's 3.
Though, both games were reuploaded on Februbecause "people keep stealing them". The game was taken down from Game Jolt with the second game some time after the cancellation of One Week at Flumpty's, as Jonochrome was having a minor breakdown. Seeing how successful the game had become, Jonochrome decided to work on a sequel, which became One Night at Flumpty's 2. The game was then released on 28th January 2015, and somehow started trending in the FNaF community. The development of the game took only about 20 days. He then had the idea of making a fan game that features Flumpty, and started working on it. When the first Five Nights at Freddy's was released, Jonochrome quickly became a fan of the game thanks to YouTuber Markiplier. Somewhere in the story, he introduces Flumpty Bumpty who was "immune to the plot" and "can transcend time and space". Initially, Jonochrome made an ongoing comic with his friends that features the character Birthday Boy Blam. One Night at Flumpty's was a game that started as an inside joke.
The game's soundtrack can be listened to on Jonochrome's video alongside the second game's, and is available for download on Jonochrome's website only. On the other hand, as a comedy title, HAM and the two variants of Credits sound very cheerful and silly instead. As a horror title, the Main Menu and Music Box give off a creepy and horror vibe. This is due to almost each of the songs is only under 30 seconds long, with the only exception being the Main Menu music which is still only 45 seconds long. One Night at Flumpty's soundtrack consists of 6 tracks (5 if The Call which is dialogue is not included), and is only a total of 2 minutes 28 seconds long. Beating this mode will unlock a star on the main menu. Once the main night is beaten, the player unlocks the Hard Boiled Mode, which is essentially the second night with each characters having much higher difficulty AIs. After that you will get jumpscared seconds later. When the door-using ones (Flumpty, Birthday Boy Blam and the Redman) enter your place they disable the light buttons, but you can still use the doors. However, the doors only have a limited supply of power, so the player must be strategic in how and when they use them. The player must stop the characters from entering their room and killing them by closing the doors. The gameplay is very similar to that of Five Nights at Freddy's, as the player is situated in a single room they cannot move from, are in control of two electrically powered doors and lights placed just outside the doors, and must keep an eye the characters' movements with a monitor and several cameras stationed around the building. If you survive the entire night, you will have a new friend! If you don't, well. Survive till 6 am by avoiding Flumpty and his friends. I hope you are good at hiding, because I am coming after you. I brought you to this special place so we can be friends.
I'm immune to the plot and can transcend time and space.