I have some ideas, read these, i beg.

- Full-body prostheses, almost like an exoskeleton, it spans the entire body and is large, has heavy duty prostheses attachments

- Leg prostheses, like a leg with a thruster that lets people fly. Or one that supercharges kicks.

- New arm prostheses, like one that literally turns into a gun, something like that.

That's all.

Feel free to use these if you are a mod dev. I want credit.