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.
When Basco took the Final Wave for Sari in #39, was it because he needed her alive for his Pseudoroids, or did he actually show concern and care for Sari? #47 subverts any possibility of the latter, HARD!
Did Akudos Gill truly care about Warz Gill and mourn his death? Or was the memorial to his son and his You Have Failed Me moment just going through what was expected of a man in his position who lost his son? Or worse, did he send Warz Gill there to be killed off in the first place, to justify a war of Disproportionate Retribution?
Base Breaker: Hurricane Gokai-Oh spamming in the summer episodes (ends right before the Go-onger tribute, where Machalcon took Furaimaru's stead) is either received well by some fans because of the Pirates-Ninja factor or too repetitive and spotlight-hogging for the others.
Continuity Lockout: As cool as all these Call Backs to previous Sentai seasons are, it's probably going to leave a few newer fans who aren't familiar with the older seasons a little confused, like the Goranger Hurricane mentioned above (and, let's go ahead and mention the inevitable, it's going to be hell for whoever ends up adapting this into Power Rangers, since they're going to either have to explain away or completely disregard the 16 teams that were never seen stateside (everything from Goranger to Jetman, with Dairanger on top of it...unless Saban retreads the path of the Masked Rider episode "The Invasion of Leawood", which just plonked in every Showa era Kamen Rider without any prior context.)
The PR group won't have to worry, at least for the Legend War. Toei is making new footage just for Power Rangers — that doesn't use anything from before Zyuranger. Turns out that other teams that haven't been adapted ARE going to show up in Super Megaforce, like Dairanger, with their existence handwaved as "powers never seen before on this planet".
The Gormin have become some of the best Mooks ever in a Sentai series, especially after the poker game in episode 10. It helps that they're portrayed as not quite as mindless as many of the grunts before and after them.
After only two episodes, a vast majority of the fandom is already clamoring for the return of Basco. Though with recent events, he may be straying towards Draco in Leather Pants territory.
The way the villains are portrayed in the movies can be Played for Laughs. It can also be jarring when you compare them to what they've been doing in the series proper. For example, in Gokaiger vs. Gavan, how Basco "punishes" Sally for not helping him fight the Go-busters...
The "pirating" connotations become more unbearable when one hears stories like this.
Germans Love David Hasselhoff: In the western world, Gokaiger is one of the most popular Sentai series in recent history. In Japan, however? Fifth-lowest rated series in history, in terms of TV ratings (just behind Ohranger, Carranger, Go-Busters and Kyoryuger). This is comparing older fans watching in other Western countries via fansubs to kids (and the older Periphery Demographic) watching in Japan, the popularity for other countries watching either by fansubs or official releases like South Korea's "Captain Force" dub tends to get...ignored.
He's Just Hiding: After the end of episode 21, this might be true of Aka Red. The final episode has Aka Red showing up in the end, then disappearing in a flash of light. So maybe?
The Mobirates' announcement for Sentai names during any Gokai Change is exactly the way the Carrangers announce their team name, which itself was a Running Gag in its seriesnote To elaborate, the Carrangers always say "Carrrrrranger!" at the end of their roll call. The Villains, or pretty much everyone else for that matter, took it to heart that they ended up using the long version throughout the series instead of the proper name, even in serious conversations..
Goseiger's card system brought Decade's card system to mind. Gokaiger brought everything else in Decade to mind.
A Red Ranger's actor initially declined to appear in a tribute episode because he wanted to put that part of the career behind himself. Other members of the cast and crew convinced him to appear, though as a result, he has limited screentime. Now, am I talking about Kazuki Maeharanote who played Ryouma in Gingaman, or Danny Slavin?
Still on One Piece, Sanji is noticeably missing from the Expies in the main cast...but his voice actor isn't, being the voice of Machalcon.
And another from One Piece, with Kazuki Yao a.k.a. Franky reprising his role as Ninjaman.
Ninjaman says that he was trapped in Negakure Temple for roughly ten years, because of the rampage of zoo animals. Wait, what was the Sentai team around that time? Bonus points for all the animals pictured having counterparts in the then active Power Animals.
While there's been no shortage of pirate Ranger fanfics before Gokaiger, at least one managed to predict the characteristics and assigned colorsof the core 5 heroes.◊
In the movie, the Gokaigers intend on hunting down the God's Eye, so that it will grant their wish to gain the greatest treasure in the universe. Of course, what the great treasure actually does is grant a wish.
The first time Luka and Ahim slept together on the couch, it was a cute moment that came after Luka tried comforting Ahim. The second time...well, here we are. There are other moments that can be be seen as shipping, especially episode 23, their focus episode (and Gogo V tribute).
With the villains, Marvelous and Basco have their Foe Yay going on, while Joe and Cid act very, very close in some of their flashbacks.
Don and the Soccer Kid in episode 32.
In a flashback, Basco asks a wounded Marvelous, "Want me to feed you ... like a couple?" He's teasing, yeah, but still.
Him threatening to kill a little kid in order to try and get a Great Power from it's owner. His actions were previously only centered on the Gokaiger, but going far enough to try and kill a child for a Great Power is going too far.
Basco goes even farther in episode 39 by threatening to blow up an entire high school for a Great Power.
And if he didn't then, he most certainly did it by blowing up Sally, the only thing that he appeared to have any semblence of morality towards, with no remorse.
He crossed this by ordering a large number of people to be converted into copies of Barizorg.
Some say he crossed it earlier when he had strapped a bomb to an Action Commander so that he would take a large city with him. And the only reason why that is because said Action Commander irritated him.
Most Wonderful Sound: Whenever the mobirates yells out the name of the sentai that the Gokaigers are transforming into.
Sally (Sari) the Monkey, Basco's sidekick. It's clearly someone crouching in a monkey costume. But the constant antics and the suit actor's surprising devotion to really acting like a monkey make you forget how silly she looks.
What's worse is Warz Gil has no problem about doing that to a great many other people.
When Basco transforms into his 'true form' in Episode 31 and he breaks Gai's arm. You can hear the crack, followed by the sound of Gai screaming...*shudder*
And let's not forget that his true form scared Aka Red. There's a reason why he had a 3 million Zagin bounty on his head, and it's not because he cooked meals for the Red Pirates.
Basco using summoned Gokaigers! Seeing mindless puppet duplicates of our heroes serving the bad guy can be quite chilling. The dark atmosphere of commandeered Gokai Galleon and their hunt for Navi does not help. This of course was predated by the Ranger puppets created by Black Cross King in the movie.
Something can be said about Gokai Silver's Gold Mode. The chestplate has miniature faces of previous Sixth Rangers, making it look eerily like a Super Sentai pelt or a witch doctor's shrunken head collection.
Also, the Goseigers. Many fans found them to be either dull or annoying, but their more aggressive behavior during the 199 Heroes movie won a lot of viewers over. The fact that their series got Vindicated by History also helps.
There's a moment in #26 where the Hurricanegers and the GokaiOh are in the same shot, and the fact that they're all standing on a model city set is really obvious due to some bad perspective.
The staff made a "stunt spear" for scenes where Gokai Silver gets knocked around, since obviously the plastic prongs would break easily from all the rough-and-tumble of the fight scenes. The problem is that the stunt spear has large sheets of black plastic connecting the prongs, which solves the fragility problem but sticks out like a sore thumb every time it's used.
Some of the suits haven't aged well, and it's easier to spot in HD. This is more common with Extra heroes whose armors aren't as easy to restore as the fabric in Ranger suits.
The first major instance of this happens in episode 20 with the Black Knight suit, whose shoulder pads and chest armor are slightly peeled off in the edges and corners, a detail exposed within close-ups of the suit.
Another case happens in Episode 31, when Zubaan and Wolzard Fire grow to giant size. As Zubaan tries to stomp GokaiSilver flat, his lower leg looks very crinkly. This is especially noticeable because, being a giant, the stomping leg occupied half the screen.
Spoiled by the Format: In many ways, #38 feels like a final episode. The Gokaigers recover from their Curb-Stomp Battle, learn An Aesop about seizing your dreams, earn their own grand power, and use it to kill both the Big Bad (up to this point) and his right-hand man in an epic manner. However, being a Super Sentai series, we knew that there were some 12-15 episodes still remaining, and on top of that, not all the Greater Powers were gained.
Episode 13, the absence of Ahim from the group would have made for ideal opportunity to use the four member Abaranger keys.
Episode 27, when Luka and Don body swap, they don't modify Gokai Green's costume into a Mini Dress Of Power, thus missing the chance of having the first female Green Ranger in Super Sentai history. But then #49 happens...
Some decisions seems to be weird. Sure, Gokai Galleon Buster being introduced the way it was played nice, but it would have made much more sense if the introduction of a bazooka was made with Changeman's ultimate power, since this series introduced this concept to the sentai genre. Ohranger's ultimate power would go very nice if used to apply different hats to GokaiOh's head.
In Episode 14, they gained Carranger's Grand Power, which is traffic safety. That probably would have been useful to help contain Machalcon in episode 36.
Episode 39, which is Megaranger's tribute, didn't have a Nejiranger like enemy. It would be really cool if they had it instead of Basco and Sally. Or if Basco had Nejiranger Ranger Keys and debuted them in that episode.
No explanation has been given by how the entire Ranger Key quest, Basco's mutiny, Marvelous recruiting and tightening a strong bond with his crew in the vast space in less than 1 year. All those events took place between after the 34 Rangers sacrificed their powers and the first episode of Gokaiger. Considering this series takes place right after Goseiger.
The lack of a Super Mode for the 5 initial rangers.
Now even Gokaiger vs. Gavan has this. Tetsu Inada confirmed in his twitter that Doggie Kruger/Dekamaster (who is close friends with Gavan in-universe) would not be appearing in this movie.
Show hands for those who thought that the rumor of the finale being a Second Legend War was true?
At the end of the Boukenger tribute, Akashi mentions AkaRed. Some people thought that this line indicated that AkaRed would have a larger role in the story than he'd had previously, but by the end of the series it turned out that he didn't have any more of a role than being Marvelous' former mentor and the one who gave him his powers. The line was just meant to refer to AkaRed's first appearance in the Boukenger vs. Super Sentai movie.
How did Gai's ability to merge ranger keys together not have a larger role beyond the Go-On Wings, Gold Mode and Gokai Christmas? At the very least, combining all the red keys should have created an Aka Red key.
Villain Decay: Damaras probably got this the worst out of any Sentai Dragon - going from a bruiser to a punching bag in one episode.
Navi is technically without gender, being a machine, but fans and even some subbers can't decide on male or female pronouns. Since Navi seemed to enjoy getting fawned over by the schoolgirls in episode 8 and uses "oira", which is generally spoken by males (there are females that do so, but it's rare), evidence leans towards Navi being a "he".
A small handful of fans thought Basco was a woman upon seeing the episode 15 preview, although that was soon cleared up. Sally on the other hand...
The Woobie: Ahim gets this treatment in #41, especially in the crying scene. You just want to give her a big hug!