Add a location to your Tweets 
 
 When you tweet with a location, Twitter stores that location. You can switch location on/off before each Tweet and always have the option to delete your location history. Learn more ||||| If you haven't already downloaded the addictive and much-hyped Flappy Bird mobile game for iOS or Android, you're out of luck. 
 
 Creator Dong Nguyen officially pulled the app from Apple's App Store and Android's Google Play platform, saying he could no longer handle the pressure and stress following its instant success. 
 
 See also: The 10 Best Mobile Games of 2013 
 
 On Saturday, Nguyen sent a series of tweets warning that he was going to remove the app in just 22 hours. Fans pleaded with him to keep it available, but by Sunday at 12 p.m. ET, the app was no longer downloadable. 
 
 I am sorry 'Flappy Bird' users, 22 hours from now, I will take 'Flappy Bird' down. I cannot take this anymore. — Dong Nguyen (@dongatory) February 8, 2014 
 
 It is not anything related to legal issues. I just cannot keep it anymore. — Dong Nguyen (@dongatory) February 8, 2014 
 
 Press people are overrating the success of my games. It is something I never want. Please give me peace. — Dong Nguyen (@dongatory) February 4, 2014 
 
 Users who already have the game will still be able to play it. 
 
 The reaction to the news has not been positive. In fact, some fans have even threatened to kill the creator or themselves if the app isn't restored. 
 
 Fans of the 'Flappy Bird' app are threatening to kill its creator or themselves now that app is no longer available: https://t.co/SlGrGcxMkv — Eli Langer (@EliLanger) February 9, 2014 
 
 Although the app launched in May 2013, it became an overnight sensation this week as it climbed to the top free app in Apple's App Store and Google Play for Android. The game was reportedly bringing in about $55,000 in ad revenue. 
 
 Perhaps the app went viral because it is so frustrating play. The concept of the game is to keep a bird afloat by tapping it through a series of obstacles. The game is designed to be simple, but the task is extremely difficult. ||||| HANOIThe developer of Flappy Bird, the former most popular free mobile game on the Apple Inc App Store and Google Inc's Android Play store, took the game down at midnight on Sunday as he announced he would do 22 hours earlier. 
 
 The game is no longer available to download for either Apple or Google users, but its fans still can have fun with the bird if they already downloaded the game to their devices. 
 
 Nguyen Ha Dong, a Hanoi-based game developer, announced the grounding of the addictive game in a Tweet at 1900 GMT on Saturday in which he also apologized to Flappy Bird players. 
 
 "Twenty-two hours from now, I will take 'Flappy Bird' down," Dong said, adding "it is not anything related to legal issues. 
 
 "I cannot take this anymore," he wrote. 
 
 His Tweet attracted more than 136,000 Retweets as of 0430 GMT on Monday. 
 
 Flappy Bird caused a sensation after rising from obscurity to become one of the most downloaded mobile games on both Apple and Google's online stores. 
 
 Users have to steer a bird between green pipes. The Android version has been downloaded up to 50 million times and attracted more than half a million reviews. 
 
 Many people have been questioning Dong on Twitter about his decision to take down the game as only a day earlier he had been talking about developing the game for Microsoft's Windows phones. 
 
 Dong could not be reached for comment. He turned his telephone off after cancelling an interview with Reuters on Thursday and not finalizing arrangements for one on Friday. 
 
 Unlike other successful game makers like Rovio Entertainment, which produced the hugely popular Angry Birds game and has hundreds of programmers, Dong made Flappy Bird by himself in a few nights, he said on Twitter earlier. 
 
 The game, which he said was inspired by Nintendo's Mario Bros, has been earning on average $50,000 a day from advertising, Dong said in a media interview. 
 
 Two friends of Dong said Nintendo had sent him a warning letter, but the Japanese game maker said it was not considering a lawsuit. 
 
 "It sounds very much like a rumor and if it is, we certainly can't comment on that," Nintendo's media representative told Reuters on Friday. 
 
 One gaming company manager said Dong's decision to take down the game was wise. 
 
 "Dong is taking one step back to avoid legal risk because it's too difficult to deal with legal issues himself if it happens," said Duy Doan, a senior manager at VTC Online, one of Vietnam's leading game companies. 
 
 Dong said earlier that he was not looking for any investors and would not sell the game. One expert said investors would not be interested. 
 
 "Flappy Bird is not to the taste of many game investors because it's just hit-based which will bring very uncertain cash flow and no recurring," said Nguyen Hieu Linh, investment manager at the Japanese CyberAgent Ventures Inc. 
 
 "I doubt he needs to fund raise as he's already earned a certain amount of money and he doesn't need more help to make this kind of mini game," Linh added. 
 
 (Editing by Jeremy Wagstaff, Robert Birsel and Matt Driskill)
– It's game over for Flappy Bird. At midnight, the Vietnamese creator of the hugely popular mobile game made good on his threat to pull the game from app stores, saying the attention from its instant success had become too much and he couldn't take it anymore, reports Mashable. Dong Nguyen, who had been making an estimated $50,000 per day from the game, says he plans to keep making games and the decision had nothing to do with legal issues, though friends say he received a warning letter from Nintendo over the game's similarity to Mario Bros, Reuters finds. "I can call 'Flappy Bird' is (sic) a success of mine," tweeted Dong. "But it also ruins my simple life. So now I hate it." His creation—described as an "almost sadistically difficult game with crude graphics and laughable sound effects" by Nick Wingfield at the New York Times—can still be played by people who have already downloaded it, which should keep Dong's income from ads on the free game rolling in. The developer says that despite all the hard-to-handle attention, he plans to keep making games and might even create a Flappy Bird sequel.