C:\Users\[Your Username]\AppData\Local\SparkingZero\Saved\SaveGames\
If you are looking for the official sequel, Dragon Ball: Sparking! ZERO , its save data is handled differently as a modern Steam/Console release. If you're having trouble with the cheat code,g., v13.5)? DBZ BT4 0.13.5 Update Cheat Code Setup & Troubleshooting dbz budokai tenkaichi 4 save file