User blog comment:Nabukun/Anyone reading Japanese here?/@comment-1739368-20160412060511/@comment-1739368-20160420020756

Yeah, the info for the arrows is pretty much what the wiki article already has.

The Araki comment mentions Purple Haze's appearance being based on Roman Armor and abnormal patchwork. And I think? some type of joke about Fugo being more to difficult to keep under control than his stand's poison gas.

I believe someone may have already added the info in his comments into each stand's trivia section, though I don't know how much of it.