ROM Hack Others Project Yu-Gi-Oh Tag Force Evolution PSP

[serpente_destro]

Hello,

I'm trying to mod Yu-Gi-Oh Tag Force Evolution for PSP to give characters better decks and improve the translation. The decks' data and some scripts are stored into EBOOT.bin, so I've extracted this data through DecEboot t and EHPScanner and I've modified some bytes. Now I want to "repack" the data I've extracted from EBOOT.bin, how can I do that?

 

[YuseiFD]

Hello, you're thinking off tag force 1, which is the original PSP game where they ported it to the PS2 under the name you mentioned, tag force evolution.

Try manually doing it in a hex editor and check if the changes took effect in the game, if not, that means the recipe codes you found in the EBOOT aren't the duel recipes but the unlockable ones.

 

[YamatoNag]

try EHPLoader

https://github.com/xan1242/TFEhpLoader

Post automatically merged: Nov 12, 2024

i used this back in the day
so try this one out

 

[serpente_destro]

Hello, you're thinking off tag force 1, which is the original PSP game where they ported it to the PS2 under the name you mentioned, tag force evolution.

Try manually doing it in a hex editor and check if the changes took effect in the game, if not, that means the recipe codes you found in the EBOOT aren't the duel recipes but the unlockable ones.

The issue is that the eboot file is encoded somehow, so I need to extract the data using specific software before making any changes. I succed extracting data and modifying it, but I don't know how to pack data back into the eboot format.

try EHPLoader

https://github.com/xan1242/TFEhpLoader

Post automatically merged: Nov 12, 2024

i used this back in the day
so try this one out

I had tried it, but it didn't work. I tested it with the file cname.ehp by modifying Jaden's name to AAAAAAA, but nothing happens when I run the game on PPSSPP (I tried with every language).

EDIT: Here it is my file. You can see my modifications in the file tag-force\ehps\ULES00600\cname.ehp at 0x5C0

 

[lucasnake]

Having the exact same problem, and exactly with the cname.ehp file, as yourself. I change someones name there and try with TFEhpLoader but it doesn't change in the game. Did you manage to fix?

 

[serpente_destro]

Having the exact same problem, and exactly with the cname.ehp file, as yourself. I change someones name there and try with TFEhpLoader but it doesn't change in the game. Did you manage to fix?

No, I didn't.
I believe there might be an issue with the first Tag Force due to a missing .ehp file, which is present in the new Tag Force versions. I've also opened an Issue on the developer's GitHub, but it seems they haven't been active lately.

From what I understand, PPSSPP decodes the EBOOT.BIN file at the game's boot. The plugin’s purpose is to exploit this window to swap the original .ehp files with the modded ones. It’s a clever approach, and with a small fix to the plugin, I should be able to adapt it for the older game version.

 

[serpente_destro]

Problem Solved

You don't need to re-encrypt the EBOOT file. To modify the data in EBOOT.bin, simply decrypt the file, make your changes, and save it as EBOOT.bin. PPSSPP will automatically recognize and use the decrypted version.