Tip: Ask the author for permission before extracting any resources, such as graphics, music, or ASM from a hack or other non-public source (such as SPC files).
In my opinion, it’s up to you to include credits whether as a txt file or in the hack itself, but I would be kinda rude to not credit the authors of resources that you are using in your hack, so yes, you can include a text file with the credits in your submission.
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