Piano Tiles 2 is a touch-based mobile game that’s lots of fun, and also maddeningly difficult. A normal person probably plays for a few weeks, gets frustrated, and uninstalls it. Thankfully, YouTuber DenverFinn is not normal.

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For him, the obvious solution was to build a robot that slips over an iPad and acts like human hands, only better. An iPhone overhead films the game at 120 frames-per-second and sends visual input to a controller that knows to seek out the black keys and avoid the white spaces. When a black key aligns with one of the tiny mallet-like “fingers,” the controller fires a tiny motor to make the appropriate finger tap the screen.

It might not have the interpretive gifts of a concert pianist, but the finger bot managed to hit a record of 21.079 keys per second. In case you’re wondering, that’s blisteringly fast. Near then end, it’s borderline impossible to follow the game with your eyes.

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Having conquered Piano Tiles, its easy to imagine repurposing this bot for other tap- or swipe-based games, similar to this spooky bot that lives to beat Facebook Messenger’s basketball game. Then again, do we really need more reminders of the imminent robot takeover?

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