Things like the greatsword. For style really. It would be weapons that were forced to work in one way, so gunblades would be slightly better than using one sword and one gun.
Only if one of the is called the Texhech gunblade and it uses a texhech revolver to make it. Muahahahaha. Magic guns...
My only concern is that this niche may have already been taken, given the fact that you can wield a one-handed gun and sword at the same time. Still, this is a mere matter of balancing; if a gunsword was to offer more overall DPS than a gun+sword combo of the same tier, but at the same time be more limiting due to its nature, I could see this fitting in the game.
...I will need a lot of duct tape to pull this off but maybe you would have like a rifle with a kind of blade on it so you stab em away then unleash ye ungodly wrath upon their heads,...then if they survive that then you poke em again.
I am so done with Final Fantasy. Every reference to absurd crossover sword-guns makes me angry by association at this point (yes I am sad about the state of this franchise, and yes I am aware of the irony of this post with my sig.) If you really want to hit things with your gun, fine, do it like 40K or even 18th-19th century firearms (stick bayonets on it or keep it separate.) Just stop referencing FF. I'll even accept the equally absurd 'bladerang' as an alternative, for the sake of variety. Even better, why not slap a flamethrower on it instead? Or just make a sword that shoots energy? Not much point mixing concepts if you can keep it inline with the original weapon, though that's just my opinion of course.
Well we have spearguns and flechette guns.... why not something that chucks swords? Sword-chuckin, yo! The idea of a melee/ranged hybrid weapon goes back farther than firearms. Staff slings, bladed war bows for when the archer got rushed, or just fighting knives that were balanced for throwing as well. Grab a sling close to the pouch, load a heavy rock and you've got a fine blackjack.
Needs more chainsaw. Fancy drawing, though. You gotta admit, most of the hybrid weapons that come out of JRPGs (especially FF) are pretty absurd nowadays. Did you see that antler whip thing from XIII, what even was that? Guess I really shouldn't get too bent out of shape about it, there's absurdity IRL too (Canada came up with a folding shovel for WW1, that turned out well....) Maybe the problem stems from too many long-haired pretty boys? If there were more burly dwarves and badass robots around, maybe they could mechanic up some real weapons, like a shotgun-axe or something. I wouldn't mind seeing some utility weapons either, like a gun (or sword) with a grappling hook feature. I know both Zelda and Metroid have used grapple lines offensively (Smash Bros if nothing else) even though I doubt science backs that up very well, so I dunno. A weapon that could also be used as some sort of non-combat tool strikes me as more useful than a two-part weapon, anyway. Then again, maybe I'm just full of it. I'll be over here.... *sits in corner*
http://en.wikipedia.org/wiki/Bayonette It is not, games just make them look weird, mixing them and using them in unpractical ways for the sake of 'coolness'. When designers make a weapon, they should focus more in "would this work?" and less in "does this look cool?".
For a while I was like... antler whip thing? God I was stuck on that for a bit. But then I remembered what you're talking about. Yeah yeah, the whip thingy. I always thought it was cool, I just never understood how it exactly hurt things, didn't seem that lethal...
Bayonettas > This. Just saying, this is just an different concept than bayonettas, and an uglier and more weaboo approaching to it.
I want a gun that shoots other guns that shoot chainsaws. Besides the fact that will most likely not happen, I would love a gun and a sword in one thing. They just look damn awesome.