Ikkitousen

People fighting bare handed, without weapons or armor.

A list of Action anime, of the guns, fists and violence variety, where you don't have to think too hard nor focus on plot development and character development; if you're looking for outstanding stories these might not be for you.

Trying to give some action to action anime that may be lost to time or just haven't generated an audience, all in the while mixing in some big hitters that you might have missed.

When the anime follows the path of the manga but takes a few detours along the way or decides to change the details and context.
If it makes you go "this isnt how i remember it" then it counts