The Unofficial Patch is a combination of the default Basic Patch which mostly fixes bugs only, and the optional Plus Patch, which is kind of a mod adding various tweaks and implementing a lot of unused content, including new quests, levels, weapons, items, characters, dialogue, graphics, models, sounds and original music! Included are also the optional Patch Extras which feature Player Mods, like shaders suites, as well as Developer Tools, like the Unofficial SDK to mod the game.
Wtf is with the anime sword? That doesn't fit in with the game at all !
Isn't that the sheriff's sword though?
Looks like it. I want it!
Yes, this is the sword of the sheriff and you can use it in the plus patch as it is an actual usable weapon :)!