Navigate to your MAME nvram folder and delete the tekken3 folder entirely. When you boot the game next, MAME will automatically generate a clean, fresh factory-default NVRAM file. Conclusion
FF FF FF FF 00 00 00 00 ...
Standard arcade NVRAM uses a small internal lithium battery sealed inside the chip package (such as Dallas Semiconductor modules).
Released in 1997 on Namco's System 12 arcade board, Tekken 3 remains a masterpiece of the fighting game genre. For arcade operators, collectors, and emulation enthusiasts, maintaining the game’s original performance often comes down to a single, critical component: the NVRAM (Non-Volatile Random-Access Memory).