As to the Bionic Weaponry:
Weapon Variety that will function with different fighting styles. (The Claws are worthless in any fighting style, if I’m right, yes?) Especially knives would work well, they could act like an Omni-blade from Mass Effect, which is basically a Katar strapped to you arm. I’d count that as usable weapon for all knife-fighting styles. For that matter, it would be funny if the claws are being used in the tiger-style or so 
Other than that, laser-weaponry is always a possibility, it would be weaker than the fusion blaster, but have more ammo, and probably no explosions~ Something like a shoulder-mounted mini-rocket launcher or grenade launcher could be funny too, but I don’t know how that would work with ammo.
Of course there should also be a bionic that allows you to interact with the battery of a vehicle. Either by loading yourself up, or by jumpstarting said car.
Other than that, there could also be different versions of the same bionic. Like, the ‘old’ basic one and newer, experimental versions, which would work even better, but have some kind of penalty included. Or, in some cases, the older version could have some kind of glitch, bug or so which gave the scientists a reason to create the newer version, without a bug.