In 1990, SEGA, an emerging arcade company, gathered a group of unconventional individuals to challenge the leading video game giant, Nintendo. This unprecedented, all-out rivalry set siblings against each other, pitted children against adults, and saw Sonic face off against Mario, symbolizing a clash between American capitalism and ancient Japanese customs. For the first time, the people who were at the forefront of this iconic Sega-Nintendo showdown share their experiences of a battle that shaped an entire generation.