Am thinking of getting a ps vita so that I can play a little while on the go. I also have a few games in my library that are available for vita and ps4. Can I simply download them there or do I have to buy them separately? And if I don't have to buy them separately, will I also get the extra ps vita trophies?
Download yes. Some games give you the PS Vita Port for free. You have to look carefully at the description, however, as this is not the case for all games that have been released for both consoles. But if you've been a PS + user for years and have put everything in your shopping cart, the chances are extremely high that you will own a number of Vita games. (For me there are about 30 since 2016, with no PS 3 and Vita games in the + subscription since 2019 or 20)
Trophies are part / part too. Some games have separate lists, but not all. In my experience, the majority of games only have one trophy list and won't give you a second platinum.
