Shinatama Evolved
Shinatama Evolved is a custom playable character developed by Samer. The idea is that Shinatama got rebuilt/resurrected into a more combat-ready body, maybe as a way for Griffin to redeem himself when Konoko spared his life in the bunker, or perhaps Konoko managed to bring back Shinatama by other means.
The playable character comes with 6 variants, a custom move set, and utilizes the in-game Shinatama sounds for taunts and hurt sounds. The outfit on the left is based on DarkLitria's sketch of a mature Shinatama. The outfit on the right is based on Amaya's model from Oni 2.
The mod can be found in the AE Installer under the name "Shinatama Evolved" (Depot page here). The SamMegaPack Conversion mod adds an appearance of this Shinatama into the game. The SamMegaPack is available in the AE Installer as "Sam Mega Pack - Conversion" (Depot page HERE).