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Codex is a video series that demonstrates the effects of cheat codes in classic video games, while discussing their origin, and their impact on the culture of gaming.

This episode is about Mortal Kombat’s “blood code,” which changed the course of the video gaming industry by offering uncensored blood and gore, later prompting the creation of the ESRB.

All material used in this video is used for the purpose of education and parody, and falls under fair use. For more information on fair use, visit

‘Zarkofag’ and ‘Warhogz’ by Owl Vision
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Very special thanks to Dan Amrich

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