5 Star% is a very similar run to the regular Any% run, only now you must complete every case with a 5 star rating at the end.
What you think you would need for a 5 star rating doesn’t actually entail what you do to get a 5 star rating. For one thing, if you don’t answer any questions, the game will not count them towards your rating. Instead, it only counts the amount of questions you answered correctly out of the amount of questions you attempted to answer.
You also don’t need all the clues for some cases, it seems that if you miss a piece of evidence or two, it doesn’t matter too much. However, there are key pieces of evidence that you must get to advance your rating, so it’s more about quality over quantity to a certain extent.
The last key factor for the 5 star rating is having the lowest amount of vehicle damage, city damage, and injuries along your case, or you’ll get a 4 star rating maximum. It isn’t so much of a problem in the regular run but would pose a challenge if you were to run the No Skips version of the category.
When you're ready, get in that new suit and start filling that portfolio 5 stars at a time!