Been working on this on and off over the past few weeks and I'm glad that I'm finally done with it. And, well, it's exactly what it says on the title—it's Noire-mom's HDD form.

Notes:
* As one can see, Sonya's HDD form is relatively unhinged. Due to this (and scaring Noire), she generally avoids going into this form.
* Her primary weapons in this form are a pair of superheated blades that are activated when drawn, and unlike the blades in her human form, she prefers using these to draw out a target's pain rather than for immediate decapitation. Additionally, her shoulder units are equipped with a pair of hidden vulcans and include thrusters used for high-speed movement.
* It's still rather unpolished, but the basic idea for the cause of her bloodthirsty nature in HDD was going through a lot of abuse and trauma as a child, with combat being her only outlet.

As for anyone who noticed—yes, this design is pretty much just a cross between a PS2 controller and the ASW-G-01 Bael. I just f-cking loved Iron-Blooded Orphans, alright. If you're familiar with the series, I think you can guess which design Nep-mom's design is going to be based on, haha.