In the original arcade release, characters were "time-released," meaning they unlocked automatically after the arcade machine had been powered on for a certain number of hours. Persistent Data : The NVRAM file ( tekken3.nv
NVRAM (Non-Volatile Random Access Memory) is a file used by emulators to store the arcade cabinet's internal settings, high scores, and—most importantly—unlocked content. Unlike standard "Save States," NVRAM mimics the physical memory of the original arcade board. Why You Need an NVRAM File tekken 3 nvram
import nvram
When you use an emulator like MAME, it creates a virtual version of this chip as a file, usually named tekken3.nv . This file "remembers" how many hours the game has been "active," which eventually triggers the character unlocks. Why You Need a Custom NVRAM File Why You Need an NVRAM File import nvram