By 2021, Adobe Flash was officially dead. Many older simulators (built in Flash) became unplayable. The 2021 simulators were rebuilt using . This meant smoother hitboxes, higher frame rates, and the ability to play on mobile phones (though touch controls make Omega Flowey significantly harder).
Players must navigate specialized mini-games for each of the six human souls, such as the cyan soul's knives and the yellow soul's gun . Omega Flowey Fight Simulator -2021-
While the original game is masterpiece, the Omega Flowey fight is exceptionally intense. Simulators allow for a few specific experiences: By 2021, Adobe Flash was officially dead