Like most 12-year-old boys, Mitchell Hashimoto played a lot of videogames. But he never liked the repetitive parts of games like Neopets, where players feed and care for virtual animals. "I used a lot of bot software that other people wrote to play the more mundane parts for me, so I could do the fun stuff," he says. Those bots were often blocked by gamemakers, so Hashimoto taught himself to program and created his own bot.

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