This form doesn’t have a name yet but does consist of elements that are included in this design due to the events of my au: 

Chip’s bracelet on the upper left arm, the lack of Werehog wrist fur on the right wrist, the scars on both his face and arm, the broken ear, and the inhibitor ring on his right wrist. 

The trans scar is just my own personal headcanon.

This form derives from the idea of Sonic transforming into the Werehog in Sonic Unleashed. And since Unleashed is my favourite game, well, it’s only natural I create something related to it. My idea was to stick with the more in canon aspects of power, such as the gods and the chaos emeralds.

Well, since the Werehog is technically a byproduct of negative chaos energy, as shown in the Sonic Unleashed manual below:

(This is my own copy of the manual yes)

And the fact that Super Sonic is him just solely using positive chaos energy. My idea was Sonic using both negative and positive chaos energy in this form. But it’s not perfectly harmonised; the balance is jagged. Due to being expedited, the negative energy is much more potent and volatile; causing this form that resembles the Werehog more than Super Sonic.

Call it a 60:40 in terms of negative and positive energy balance.

He essentially possesses all the abilities of both the Werehog and Super Sonic, but this form is in-fact unstable due to the unbalanced nature of it. The Dark Gaia energy occasionally flares up which causes Sonic to stagger; especially since Dark Gaia is trying to reclaim the rest of it in order to complete its form into Perfect Dark Gaia.