It can be extremely difficult. Often there are weird constraints like needing to preserve the first letters of one of the words, or two words both sounding similar and having similar meanings. One hour is completely believable to me. When it's done right though it can really elevate the experience. My favorite example I've seen recently is from Yakitate!! Japan when they were making a Fist of the North Star Reference and the localizers changed "You are already germinated brown rice yeast" to "You are already bread".

[–] mnemonicmonkeys@sh.itjust.works 4 points 3 days ago

My favorite example I've seen recently is from Yakitate!! Japan when they were making a Fist of the North Star Reference and the localizers changed "You are already germinated brown rice yeast" to "You are already bread".

I love how the English localized version doubles as a reference