I kept thinking it was a mod, someone’s elaborate art project stitched into code. But mods have signatures, credits, readmes. This cartridge withheld explanations the way oceans withhold shipwrecks. At times, the game felt like it was listening. If I paused, the menu would murmur a line of advice: "Ask only what you can carry." If I sprinted, the footsteps multiplied into a chorus that remembered my name.