This mod was never officially released outside of giving it to a few friends.
The plan was to have the pufferfish be in some of my youtube videos but I eventually stopped uploading after my upload speed upset me because I couldn't play games and upload.
A video of the mod can be seen bellow
The mod contained two type of pufferfish. Yellow pufferfish and rare pink pufferfish. They would drop puffer scales which could be used to make armour that made the character look like a pufferfish.
I also made a actual model of this pufferfish for my Resistant materials GCSE. I didn't get a good grade because it wasn't the brief but at the end of the day other people have a piece of paper with the letter A on which becomes kind of useless after college and I have a pufferfish PS vita (I didn't have a phone) dock sitting on my shelf to this day.