While I love the cyberpunk 2020 system, I feel that the Martial Arts part of it has a few problems and does not deal with Mixed Martial Arts.
Firstly, many Martial Arts are just variations of a theme as there are only so many ways to injure someone. And taking multiple Martial Art Skills, your character ends up wasting IP (ie Experience). So as it stands, CP2020 does not deal with mixing martial arts together that well.
Secondary, most Martial Arts start with the foundations and then include weapon training at higher levels of skill. Having chosen a Martial Art, a character is almost locked into that path. So the form does not grow or evolve as the character does.
And finally, it cuts down on the roleplaying opportunities as a character does not need to learn from others. To find the master that can teach them that final technique to become the ultimate killing machine.

So the goal of this is to retain the feel of the CP2020 martial arts while allowing character growth. To simplify the system. And to give the cool feel of the H2H from movies like John Wick (1, 2, 3, & 4), The Raid, & soo many other movies…

This is the Art-less edition (ie No Art)