These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Hyperdimension Neptunia Victory
Badass Decay: Due to slacking off over the past few years since mk2 ended, Neptune and Nepgear have reverted back to Levels 1 and 10, respectively. Nepgear lampshades this.
Neptune's treatment of Nepgear largely matches up to how much Nepgear has screwed her over. At the start of the game she's done little more than take over for her sister on a game to play with her own friends and tries to pass off most of the work onto Nepgear, who was actually made Planeptune's offical CPU in her absence at the end of mk2 and as such should be the one doing most of the work. Her more spiteful behavior doesn't really come up until Nepgear screws her out of, as far as they know, the only chance to go home to solve the problems there and then stabs her in the back for trying to make it so she can actually safely stay with her rather than be continually left behind as a babysitter.
Another interpretation is an instance of Mood Whiplash - Neptune's being unfair and howling abuse, yes, but that's because she's (somewhat shockingly) realistically upset in an otherwise fairly cartoony setting.
Plutia's act of being a sadist is amusing to some, but others really find it annoying how much she manages to get what she wants by scaring the crap out of everyone with Iris Heart, and in her normal form, some don't like how much her mistakes are ignored simply by pulling a cute face or getting angry (ie being called lazy when it really is true)
Nepgear's treatment as a Butt Monkey comes off as mean-spirited. Base Breaker she may have been, but that doesn't excuse all her insulting titles and the questionable treatment her sister gives her. Taken to whole new levels in the so-called "Good" Ending, wherein her sister practically abandons her in the past Gamindustri for Plutia and is too lazy to care anymore. Wow, maybe Vert really would be a better sister for her.
Fortunately, that ending is a non-canon ending. Not to mention, the real reason why either of them were even in Alternate Gamindustri in the first place was her holding the Idiot Ball repeatedly; Pushing what was officially her work onto Neptune, ignoring her job to keep Planeptune safe because she felt like moping over Neptune being gone for a couple of days, and refusing to listen to Histoire about staying away from the portal.
"Funny Aneurysm" Moment: Plutia mistaking a CPU Memory for candy? Amusing. Blanc, Peashy, and Rei all making similar mistakes? One tragedy after the next. The world sucking outside of Lowee until Planeptune and Lastation came along? Interesting take on how things played out in real life. That's not the only thing taken from real life.
Game Breaker: Making money in this game is pretty easy as soon as you get to chapter 4. One monster plus one costume, make them in the factory, and suddenly you have a one million profit.
Possibly justified as you will need a lot of credits to buy out everything from the store and especially the scouts.
Once you get Vert and Nepgear in chapter 4, you can start creating the CPU Rings which give out a lot of stat increases. While you're at it, you can also obtain Vert's Infinity–1 Sword, Dreadnaught, rather easily as well in the same chapter. Just give her a few levels till you let her learn Air Slicer, give her the godly disc above and she'll fill up that EXE gauge in no time. Given that this chapter also introduces to players (who want to get all the quests done) Gargoyle, you will need it.
Iron Woobie: Blanc. She never wanted to be a CPU, but when it happened she went out of her way to make Lowee and make it a, and implied to be the only, decent place to live in Gamindustri for the longest time until Planeptune and later Lastation came along. And these other countries start to indirectly make hers fall apart. Mr.Badd, who she had trusted as an advisor, more or less set her up for public humiliation and stripped her of her powers. Given the chance to just be a normal girl again, she instead chooses to give that up and takes up Iris Heart's offer to regain her power to protect the country she made. After The Reveal for Rei, this gets even worse. Had she not taken up Iris Heart's offer, despite being powerless she would never have become a normal girl again. She would've simply become a long forgotten powerless immortal who's nation would've eventually become treated as nothing more than a myth, just like Rei.
Memetic Mutation: Someone, somewhere out there will post about the IF President mocking the player if they don't complete the quests required for the chapter to say "Are you not -trying- to enjoy the game?"
Moral Event Horizon: Mr. Badd set up shop way over the line, rivalling Linda's actions from the Conquest Ending in the last game. The disgusting little monsters he uses to fight, and refers to as his "daughters"? These are children who were given CPU Memories and failed to transform, becoming Tragic Monsters that Mr. Badd considers his children and uses to fight with, and even uses them as extortion against the Goddesses in a very decent Batman Gambit. The man is utterly despicable and this can make quite a few players livid.
And yet he pales in comparison to what Anonydeath did to Peashy. Brainwashed and Crazy for ten years while becoming the newest CPU of Gamindustri all while forgetting Neptune and Plutia.
Strawman Has a Point: Though the Seven Sages are generally pretty ruthless in their bid to oust the CPUs and they are pretty bad villains, considering how Neptune and Plutia generally act, they aren't ENTIRELY unjustified.
That One Achievement: Maxing out the Lily system for all of the girls. Unlike mk2 where you only needed to max out Nepgear's Lily Rank (because she's in the Unwanted Harem), in this game, you have to max the lily points of every single character paired with another character. It's not that hard but yes, it's as tedious as it sounds. Made more annoying by the fact that you can't get Uni, Rom, and Ram till you get at least at the Good Ending path which is at chapter 9.
That One Boss: During the story, Arfoire in chapter 5 usually pops up thanks to her being really massive. In the Quests (though they're optional really), people would be ballistic if they heard the Risky Foe "Gargoyle". To the point that some fans have exaggerated that he's the Shin Megami Tensei equivalent of Matador, series resident Wake Up Call Boss. Yes, he reminds us that buffs are really important in this game and that skimping out on equipment is not a good idea.
The Woobie: Once you find out what Rei's real past is, you would really feel sorry for all the crap that she's done after accidentally killing her entire nation.