I like the scythe weapon type in Nioh 2. It's got 3 different settings, depending on what stance you are in. Low stance, and the blade is collapsed back against the shaft, making it almost look like a Klingon Bat'leth, just with the blade curved the other direction, convex towards the enemy, not concave. Mid stance is slightly extended, High Stance it's fully unfurled. And your fighting style is entirely different depending on that. Low stance, you're twirling around like a little dervish, high stance you are doing heavy swings.
I'll mention the scythe from Dante's Inferno, if only for the design of it. A shaft made of the spine of a monster, with a big ass blade attached to it. Looked distinct I'll give it that. I'm not a fan of "I wear the bones of my enemies" kind of motiff, and I preferred using the crucifix as a weapon in that game anyway, as the scythe was basically the "renegade mode" weapon, and the crucifix was the "paragon mode" weapon. So I used it more. But it did look neat.