definitely had my expectations extremely low for this one, as I had heard in the past that this was the worst katamari game by a large margin, and after playing it, I simultaneously don't think it's that bad as well as understand exactly why people think it's the worst. So as a game, this is definitely your katamari fare that you know and love, plus theres a gimmick where you can use the touch screen to squash and stretch your katamari to either fit through tight narrow spaces or low wide spaces which is a little weird but sure. I think the biggest point of contest here is the fact that theres a lot of DLC that while the contents themselves are free, in order to actually use them you need to earn a SHITLOAD of in game currency to actually unlock and use them. Said in game currency convienently can be purchased online as microtransactions if you want to avoid the grind. The sad thing about this is apparently the DLC levels are among the best in the entire game, and they are locked away either behind hours of grinding or a paywall, and that's no fun. I don't think this is the WORST katamari, but you are definitely better off playing one of the home console games instead of this. It's about on par with Me & My katamari, I guess. The OST goes hard tho, gotta love shabadoobie

A disappointing experience, as someone who's played Katamari Damacy and We Love Katamari. I mean, yeah, I suppose it's still a Katamari game, but it just feels like... something is missing.
I do like the jump and squash and stretch mechanics, but I feel like they make the game a little too easy to control (with Katamari, I think learning to control the katamari efficiently, despite how hard it is initially, is part of the fun).
The levels are fine enough, understandably they couldn't be really big, since this is a handheld.
What really irks me and keeps me from fully enjoying this game is how strict the time limits are. In the original and We Love Katamari, you had plenty of time to familiarize yourself with the stages and still be able to get a good score. Here, even if you try your hardest to optimize your route and stuff, you won't get more than 70/100 points. Oh, also, this game has an actual scoring/rating system, instead of the King just saying what he thinks about how you did. I don't like that.
The levels are also very repetetive. Very little variety in level goals.
As for the presentation, yeah it's totally weird and uncanny, but honestly I'm all for it. Katamari games always have that kind of wacky vibe, and here it's turned up even more. But the other games in the series that I've played do it better in my opinion.

If you just want some Katamari action on your Vita, this is fine, I suppose, but I think you're better off just playing earlier entries in the series. (Keep in mind, I've only played Damacy and We Love Katamari apart from this one)