I don't know about y'all, but I'm having a fun time with these threads. One of the recent ones brought up Centaurs, which went pretty horrible for me as I apparently don't know much about horses. Turns out they're more dangerous than I realized. Centaurs are like people with extra legs. But what about people with extra arms? I grew up on video games in the 90s and 2000s, and two characters that immediately spring to mind are Goro from Mortal Kombat, and Machamp from Pokemon. What's interesting about these two is that they present two slightly different styles on how a four-armed person would work: Goro has his arms where a human would have their ribs, and Machamp has an extra pair of shoulders on top of his humanoid shoulders. However, the effect is relatively the same, for the sake of this discussion. The Creatures Let's assume that a 4-armed individual: Has a slightly taller torso to accommodate the extra arms. This also means shorter legs relative to their height, which may affect balance. It means more back muscles (giving similar strength to each arm as a human) and more core strength. Is either: the same size as a normal human, with the arms slightly weaker (i.e. around 5'6 - 6' tall, or about 165-180 cm); or is a bit taller than a normal human, with the arms roughly the same (i.e. around 6'6-7' tall, or 200-215 cm). Now, when I say "slightly weaker", that's per arm. The four total would be stronger. For example, if you expect the average man to curl 35 pounds with a barbell, then a human-sized 4-armed man would curl 25 pounds (less per arm, but together it would be 50). The individual is as dexterous with each hand as a human would be. (There is no "penalty" for dividing attention, because the 4-armed person has been using all 4 arms their entire life). However, complex movements may be more difficult. For example, a human patting their head and rubbing their belly takes a little bit of practice. It would be more difficult for a 4-armed person to do this, but also scratch a cat and roll dice, because it's extra conflicting moves. But they should be able to do the first two the same as a human would. In all other areas, the being is essentially humanoid. Their leg strength/body weight ratio is similar to a human's, their speed (both running speed and dextrous speed) similar to a human's, intelligence, flexibility, stamina, etc. For the sake of the discussion, let's go with a human-sized creature. where each arm is a little bit weaker, but the combined strength of the arms is stronger than a human. 5'8", 190 pounds (due to thicker legs, longer trunk, and extra arms). Their Fighting Skills We've presented positives and negatives so far, but mostly in the form of strength. When fighting, they have these advantages: Quicker strikes due to having double the punching arms A hand grab only takes away 25% of their punches instead of 50% (either if their hand is grabbed or if they're grabbing) A two-hand grab still leaves them with the ability to pummel you, and a human is out of hands. Alternatively, they can pin your arms and choke you and still have a free hand. If you grab their right arm and circle to their right side, you still have their other right arm to deal with, whereas a human in this situation is at a severe disadvantage They can keep two hands in front of their face while throwing combos Shorter legs and more arms makes them better balanced on all sixes, which may have an advantage in take-downs and the ground game They also have these disadvantages: Punches are weaker due to muscle distribution Combos cannot be twice as fast and maintain power, because you're not doubling the work done by your core and feet to generate the power Shorter legs means less balance and less powerful stances Shorter legs means you can't kick high (although all things considered it's not as big of a deal) I imagine that this would lead to their striking style being more similar to Wing Chun than to boxing, and for them to make significant use of arm grabs to establish an even more dominant position (4-on-2 vs. 3-on-1 or 2-on-0). Their grappling style I imagine would quite often feature going low. Even if they don't have the leverage in the take-down, once they go to the ground they would have a significant advantage. It would be kind of like a spider using all 8 legs to subdue its prey. Fighting Against Them How would you fight against someone like this? When they punch, how do you defend or counter in a way that can give you an advantage? When they grab your arms, how do you turn that against them? When you take them down, how do you keep the advantage in order to pin them? You can kick from a longer range, but what's to stop them from grabbing your leg and attacking the one leg with all 4 arms?