Gun is surely the best Old Western game ever, next to Red Dead Revovler , and manages to be a fantastic game as well.
The gameplay uses a point and shoot mechanic the works well, basically if your target is even touching your reticule, you can shoot him. Controls are all fairly basic with two points worth a mention standing out, the first is Colton never has to look for health packs, if Colton is in a gun fight and needs to heal all he has to do is drink for his flask and his health will shoot bask up. But you still do have to find flask refillers. The other is Colton can at anytime enter Quickdraw mode which slows time to a crawl and lets Colton lock on t his enemies in slow-mo and take them out with out having to worry as much about being hit, although you can only use your pistols (your weakest weapon) in Quickdraw and it only lasts a short while so make it worth it. although you can recharge the meter by killing foes.
In terms of graphics and sound the game nearly flawlessly captures the great look and feel of the Old Western classics like "The Good, The Bad, The Ugly" or "Blazin' Saddles". All of your enemies are appropreately vulgar and the cutscenes look and sound really, really good. The flaws in Gun are minor and chances are casual players will not notice them. For starters even though I think it a bit harsh, I will admit the story is a bit short, it will take you about six or seven hours to complete. Another thing that could have made the story line longer, is the fact the the story in Gun never really capitalizes on a key points in the story. For instance at one point, Colton is made Sheriff in one town, this could have opened up a whole new set of side missions, or give him special privilages from that point on, but instead the game just motors on forward.
For fans of Red Dead Revolver or other Western games or ovies you will like Gun, but if your just looking for a good action game, Gun works well in both categories and should be a sure buy any those fans.