The primary reason to use an MCR save file is the immediate availability of the entire roster. Instead of beating Arcade mode 16+ times, you get instant access to fan favorites and secret fighters:
To load a 100% completion save into your game, follow these general steps: rpi3 psx tekken 3 saves import - RetroPie Forum tekken 3 mcr save file better
: Offers numerous PlayStation Save Files including DexDrive and virtual memory card formats (which can be converted to .mcr). The primary reason to use an MCR save
: Automatically modify the .mcr file to unlock all characters (including Dr. Boskonovitch and Gon), Theater Mode, and alternate costumes (like Jin’s school uniform). Boskonovitch and Gon), Theater Mode, and alternate costumes
: Immediate access to Tekken Ball and Tekken Force without needing to play through the game first. Where to Find the Best Tekken 3 Save Files