Gunslinger is very, very, very detailed and tricky, but even harder to grasp because of the tiny font, triple column "rule book" (read: statistical list and chart assembly) and not "fun" as a solo experience, though it was definitely a "funny" solo experience. Like Robo Rally and Space Alert, you program a series of movies and watch bad stuff happen.
My last game, I spent about 20 minutes looking at charts and pulling out cards and cross referencing as my opponent shot me, jabbed me, and (as I tried to get up) kicked me, kicked me some more, and shot me unconscious. So it was a LOT of work to be kicked and humiliated after 30 minutes of missing my shots and trying to hide and reload ... but it was certainly a vivid experience, which means something to me.
People are divided on whether Gunslinger works as a solo game--it comes with a solo system in the original box and my current rating reflects using that system, which works well enough to kill me consistently (if not unfairly), though it did get jammed in loops a few times and required "helpful interpretation" on its behalf (so it could then kill me). I'll pull this out again some time, and I imagine with living opponents it will be more fun than it was opposite the inexorable (and sometimes illogical) A.I.
So my rating is applicable to solo plays of the original system and may change when I try it out in full and learn whether this can be "fun," but the admirable (if not overwhelming) details of aiming, aiming some more, sticking your head around a corner, loading, which hand holds the gun, the steps of reloading, the kind of bullets going in, the chance of a misfire, the type of misfire, injuries, getting staggered, falling down, etc. are neat even if it the game plays like more of simulation than a game in the solo mode.