Xistic writes “For many years tool assisted speedruns were purely theoretical and the domain of emulators. No longer! Using an Arduino Duemilanove microcontroller to drive an actual Nintendo console, pjgat09 plays back prerecorded input to beat Super Mario Bros. in record time. The selection of possible games is limited: ‘If the game relies on any uninitialized memory for randomness, or if it is heavily based on console timing, it may not work. In the case of Super Mario Bros however, as long as the button presses start play back at the right time, the movie will play back correctly.’ The author includes complete instructions on how to setup the device.”

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NESBot: Tool Assisted Speedrun On Real Hardware