Shadowkill

Shadow in ULTRAKILL: a solo first-person prototype with boost and homing attacks, while keeping the base game's weapons and parries.

Hold dash to boost; in the air, aim at an enemy and press jump again to perform a homing attack. CHAOS energy recharges when you're not using abilities. In the menu, choose Start Shadowkill / Into the Fire.

Requires installed Windows copies of ULTRAKILL and SONIC X SHADOW GENERATIONS. Shadow's gloves, inhibitor rings, textures, and original sounds are read directly from the companion game's installation and decoded in memory. The plugin finds the installation through Steam. No game content is included in the package. The hands use procedural positioning; Shadow's skeleton and all of his animations are not transferred.

Original MIT-licensed code; remixes are allowed, and the source is included. Developed against ULTRAKILL Steam build 22957324 / Unity 2022.3.29f1 and SONIC X SHADOW GENERATIONS build 16644180 / executable 1.10.0.1. Other versions need to be validated.

Version 0.1.2 passed two two-minute runs installed through Melty, including companion game file reading, boost movement/energy, and homing damage against a native enemy. Build completed with no warnings or errors; spreadsheet, packaging, reader, and reporting tests are included. A real gameplay session capture is attached.

Credits: Shadow / SONIC X SHADOW GENERATIONS — SEGA and Sonic Team. ULTRAKILL — Arsi “Hakita” Patala and New Blood Interactive. VGAudio — Thealexbarney and contributors (MIT); BepInEx and Harmony by their respective authors. Format references: HedgeLib and vgmstream. Developed with AI assistance (Codex). Fan mod not affiliated with the original creators.