So if you have a PS Vita/PS TV and don't have Ys: Memories of Celceta yet, then you should get it if you like action-JRPGs, because it's truly worth it. I just beat it by the way, although only in easy mode for now. It's a remake of Ys IV: Mask of the Sun for the SNES/PS2 and Ys IV: Dawn of Ys for the Turbografx-16 and it's the only version of Ys IV that ever came out outside Japan.
They reworked everything in the game, including the storyline so a lot is different, and the addition of difficulty levels makes the game more forgiving to casual players, while still offering challenges to hardcore players. It's kinda like Zelda on steroids, but much more linear. I would say that the downside of this Ys IV remake is that there are long loading times, a lot of unnecessary dialogs near the end (eg when your entire party says "Don't give up Adol!" one by one, followed by "Let's do it!" or "Right on!" one by one, then "We should get going", followed by a second series of "Let's do it!" one by one then "Let's go!") and I think I ran into some glitches sometimes but other than that it's awesome. As for the load times they can be countered by pressing O through some of the cutscenes, which fast forwards through them.
The other game downside is something I'm going to spoil you: The ending. Basically, once the final boss reaches 0 HP, the game switches to a black screen saying "The End", instantly (no transition or anything).
Spoiler
Just kidding about the ending. However don't expect much of an ending, because they really went full NES mode there. Even some of my calc RPGs have more text
And finally, I have the feeling that they were planning to add DLCs or bonus dungeons, but finally never did, because at the beginning there's a blocked mine entrance and there is no info about it anywhere online (most people even says there's nothing there). It looks like a bonus dungeon entrance, yet there is apparently nothing special there.
Anyway, buy it or download it if you can find it. PS Vita JRPGs are friggin expensive per portable system standards in Canada now, even 1-2 years after they come out, so I kinda quit buying games for that system, but I got Ys long beforehand.