Hacking usb loader, without smash disc and all characters

[tallpr24]

Hi all,
new here.
Can someone help me?

what I would like to do is create an iso i can install into my usb drive and play via usb loader that has all the character built into it.

I have already created an iso using pm iso builder but the custom characters are missing.Hi all,
new here.
Can someone help me?