Improvements in electroactive polymer technology and actistridulant myomeric fiber-shaping processes have allowed for cheaper and more efficient artificial muscles. Acheron Technologies' new line of artificial limbs is lighter, cheaper, more reliable and easier to maintain than anything else on the market.
The original version of Upgrades (www.furaffinity.net/view/12844…) was the very first pic Daemonkiller117 spotted in my gallery, about four years ago. I mentioned I wanted to redraw it at some point, and he decided to sponsor that endeavor. Thanks, Blak!