I was trying to do the same with Monster Rancher 3, Monster Rancher 4, & Monster Rancher EVO, all of which are .dat files.
Luckily, BloodRaynare over at ResHax made 2 bms scripts for the PS2 Monster Rancher games, one for 3 & another for 4:
MR3.bms: https://drive.google.com/file/d/1YXRDK0O...sp=sharing
MR4.bms: https://drive.google.com/file/d/1h91PfSr...sp=sharing
To edit them, use either Notepad++ or just Notepad. Both could work.
Side-note: The .dat files would have .tgs files within them. And the error of the scripts not finishing the entire file is because of "log NAME OFFSET SIZE 1", at the end of each of those scripts.
Luckily, BloodRaynare over at ResHax made 2 bms scripts for the PS2 Monster Rancher games, one for 3 & another for 4:
MR3.bms: https://drive.google.com/file/d/1YXRDK0O...sp=sharing
MR4.bms: https://drive.google.com/file/d/1h91PfSr...sp=sharing
To edit them, use either Notepad++ or just Notepad. Both could work.
Side-note: The .dat files would have .tgs files within them. And the error of the scripts not finishing the entire file is because of "log NAME OFFSET SIZE 1", at the end of each of those scripts.