About the Crane game... is it necessary for 100% / Achievements?

[RAWRmonger]

I'm in September, trying to get Neko Shogun, but I barely catch an item, let alone the prize.
The 100% day-by-day guide says to give it whirl, and then another day (haven't reached it) to obtain the Neko Shogun and that is confusing.

Am I able to obtain the prizes on certain days? Am I supposed to keep practicing? Do I need to save abuse to catch items and thus improve my skills/odds?

I am absolutely hating the RNG of this when it comes to parts with save abuse.

[XenoEvil]

There is no achievement tie to the crane game. This crane game is completely random but you have a month or more to get the grand prize. So if you try it everyday, you'll eventually get it.

[RAWRmonger]

I ended up getting it before the guide's day.
But this is bananas, I was save abusing and in one day, if I'd get something, it would be on the 1st or 5th try, then on the next 2 days, after several realoads, I wouldn't get anything, until I got the doll.
The RNG doesn't even feel uniformly distributed, know what I mean?

2 more of these I guess.

[Uli Minati]

RNG also resets after loading a save, I think it depends on ingame seconds or minutes

E.g. I saved before going to Aiya, and kept getting the exact same boosts in the exact same order (1 in 64 chance). That was because I had almost the same timing every time after loading. However, waiting for a few moments or running in circles before going back in let me get different boosts

[RAWRmonger]

Yeah, I'm getting such impressions - varying by minutes, not seconds - since I deliberately tried changing my route ever so slightly but still got mostly the same results.

I also wasted about 1 hour with the bowl stats recently, which should be a 1/4 chance to get the right combo, assuming all stats can be left out with equal probability.

[RAWRmonger]

11/06, got my King Frost Doll on the attempt.
I was expecting to lose ~3 hours ...Heh.

[§єǫuєᴋʜaɴ ⚶]

i think the machine is completely stuffed. I am playing on psVita atm and it makes no difference when I reset the game or do a hard reset, every time I play the crane game, 5/5 no catches. Play it on the bonus day, 9/10 no catches.

Waste of money. That's all it is.