Z3RO 7, one of the higher ranking characters. The spring-loaded prosthetic legs have been designed with high-speed velocity and maximum vaulting abilities in mind.
I created a 15 minute sketch on a scrap piece of paper before transferring it to Photoshop and rendering it out. If I had extra time I'd like to work on the weapon design more and incorporate a better twisting action. But overall I'm rather satisfied with it.