: Check if your game requires a parent BIOS file. For Taito G-NET games, you typically need taitogn.zip in your ROMs directory.
Posted August 9, 2019. 78081g503.ic655. This is a file for Bios roms such as TPS ZN1 ZN2. Unfortunately it hasn't been dumped yet. LaunchBox Community Forums 78081g503.ic655