__full__: Resident Evil 3 Nemesis Eboot.pbp 12

Throughout the game, "Live Selection" prompts will change the story and item drops. One critical choice is the bridge encounter: : Changing the game's ending path.

Based on common file naming conventions for PlayStation Portable (PSP) conversions, the text likely refers to the Resident Evil 3 Nemesis Eboot.pbp 12

(a website, a YouTube video, a save file name), that’d help. Otherwise, ignore the “12” and follow the standard guide below. Throughout the game, "Live Selection" prompts will change

button to enter the "Other Options" menu, changing the Disc Speed from "Normal" to Throughout the game

Why that filename matters

If you find the exact source of “12,” share it and I’ll give you the precise step.