Nintendo Life says: “During last week’s Awesome Games Done Quick stream, speedrunner PeekingBoo performed a 14:41 speedrun of Celeste’s C-Side levels, played entirely on a dance pad. Not satisfied with the difficulty of the C-Sides, which are optional short-but-challenging levels, PeekingBoo also decided to get all the Golden Strawberries, which are also optional achievements that you get when you finish an entire stage without dying.”
Source: N4G PC Watch Someone Speedrun Celeste Using A Dance Pad