Jinsei Owata no Daibà Âken (, lit. "The Great Adventure of 'My Life Is Over'") is a Japanese browser-based platform game developed by the independent creator King and released for free online as an Adobe Flash game in the late 2000s. The game features the 2channel (2ch) ASCII-art character Jinsei Owata (人çÂÂï½µï¾Âï¾ \(^o^)/) as its protagonist and became known for dense "trial-and-error" level design with numerous instant-death traps.
A sequel, Jinsei Owata no Daibà Âken 2 (人çÂÂï½µï¾Âï¾Âã®大åÂÂéº2), was released on 15 August 2020, shortly before Adobe Flash Player support ended in late 2020. Following the end of Flash support, the games were later made playable again via the open-source Flash emulator Ruffle and were re-published on King's website in November 2023.
Jinsei Owata no Daibà Âken is a side-scrolling platform game in which the player controls Jinsei OwataâÂÂcommonly represented by the emoticon "\(^o^)/"âÂÂthrough stages constructed largely from ASCII art, with the goal of reaching the end while avoiding traps that typically kill the character in a single hit. The player's basic actions are movement, jumping, and firing a forward projectile (the "Owata Buster"). Frequent deaths are expected, and the game encourages repeated attempts via fast restarts (a retry function).
The sequel retains the same core controls and structure while thematically framing its setting around the impending end of Flash content; contemporary coverage described the sequel as taking place in a disappearing world tied to the shutdown of Flash support.
According to interviews with King published in Japanese media, the project originated from King's familiarity with 2channel ASCII-art culture and the Jinsei Owata character, and he began developing the game while a university student as part of learning and practicing Flash development. Version logs archived by the Flashpoint preservation project list early public releases in January 2007 and subsequent updates during 2007.
Japanese coverage in 2010 reported that the game was released as a "complete version" in September 2009, and that it later included additional stages referencing I Wanna Be the Guy (IWBTG).
On 15 August 2020, King released Jinsei Owata no Daibà Âken 2 for free on his website, with multiple outlets highlighting its release as one of the last notable new Flash games before the end of Flash support. The sequel was widely framed as explicitly referencing Flash's impending discontinuation, including in feature coverage by Denfaminicogamer.
After Flash Player support ended at the end of 2020, playing Flash games in modern browsers became difficult without emulation. On 19 November 2023, Japanese outlet AUTOMATON reported that King re-published Jinsei Owata no Daibà Âken and its sequel on his website using the open-source Flash emulator Ruffle, making the games playable again in a browser environment. Denfaminicogamer similarly noted that the re-release relied on Ruffle for browser playback.
The series became known in Japanese internet culture for its extreme difficulty and frequent "instant-death" surprises, and it is often discussed as a representative example of Flash-era "die-and-retry" action games.
In 2020, the Suntory coffee brand Craft Boss released a promotional web video reflecting on the history of Flash culture; contemporary reporting noted that the video referenced multiple Flash-era internet icons, including Jinsei Owata.
Japanese outlet GetNews reported in 2010 that Michael "Kayin" O'Reilly, creator of I Wanna Be the Guy, sent a message to King thanking him and stating that O'Reilly had been inspired by Jinsei Owata no Daibà Âken. Denfaminicogamer's 2020 feature on the sequel also discussed the game's ongoing influence and noted continued interest in the series around the end of the Flash era.
The game has also been referenced in academic writing discussing Flash-era online game culture; a 2022 article on Flash and online media history cited King's Jinsei Owata no Daibà Âken (2007) among notable Flash works and provided the official URL.