The CUSA00900 version refers to a specific build of the game, likely tied to a particular region or update. This version, combined with the V1.09 patch, offers a stable foundation for modding.

Often includes "Great One" boss fights that were hidden in the Chalice Dungeons. 3. Visual & Quality of Life Mods

A specific patch to stop character models from glitching out (common in early emulation builds). 3. New Gameplay Mods First-Person Mod:

If you have a different ID, many mods will crash on startup. Always convert or verify your CUSA.