I'll put it straight with recommending this game. As the developers never seemed to care about the future of this game, all they wanted was a 'beer and chips' game. But...
They created something a little more than that, a game that was fast, fun, competitive, and had some depth to it. With incredibly creative levels, and all sorts of different ways to die, it quickly became one of my favorite games. However, as I started to grow and become much busier in life than my high school days, I just couldn't find the time to bring people over *just* to play Samurai Gunn on my ♥♥♥♥♥♥ desktop. What the developers wanted was a local multiplayer game that was fun and brutal and unfair, and it was. But who in their right mind wants to play (with me) on my tiny ♥♥♥ screen in my cramped room?
Furthermore, this game was released on STEAM, a place where PC gamers usually buy their games (due to gaben, our lord and saviour). What PC gamers expected, was an online multiplayer and what I expected as well. There were some debates here and there. The fact remains, I could never just sit down and play this game, I'd have to call everyone to my house just to play Samurai Gunn. It would be so convenient to just be able to play the game, online. I have friends who have since, moved on to military and are now working overseas, across the globe. People move to different states, etc, you can't always just sit down with friends to play this game.
This game really needs a working multiplayer, I'd take the lag spikes, regardless. In fighting games, I really don't mind the lag, as long as I'm having tons of fun. Here, I did have plenty of fun, and the alternative to multiplayer in Samurai Gunn is just bad.
So, for what this game is worth, I just can't recommend it. Had I bought it on console I'd have the luxury to play on my couch with more space and more people, maybe I would. But this game, as a STEAM game, is just not worth it's price. A hilariously bad and poorly thought-out single player is not a good alternative. There was, a lot of potential to make this game much better than it is now, like adding different weapons as an example. But I just can't recommend it.