Failsafe is the AI of a Golden Age colony ship stranded on the planetoid Nessus in Destiny 2, released in 2017. Known for her split personality that swings between manic cheerfulness and gloomy pessimism, she became a fan favourite through her quirky voice lines during Nessus patrols and strikes. Her short cheerful whoops and yips circulate online as reaction clips because they compress her whole personality into half a second. Destiny creators still use them years later to mark victories and happy accidents in their videos.