The wheelchair design for Atli (https://www.artstation.com/artwork/6a98zV) and development work. Originally, the wheelchair and weapons were separate, but they just begged to be combined. The bat is just an addition as I couldn't let go of the idea of Atli having a blunt, graceless weapon (to match their personality) for close-combat. As you can see, the irritant-X symbol makes a reappearance.
The frame was designed with reference to Kuschall's wheelchairs, but the wheels have a more obtuse angle for stability.