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: LEGO Adaptation Game
Adaptation Displacement: Harry Potter (and, inevitably, Lord of the Rings) is based more on the movies than the original books; though since this is the Cliffs Notes version of the plot anyway, the difference is rarely noticeable.
There's a bit of this in Marvel Super Heroes, too. The characters from the Marvel Cinematic Universe are based off of those designs while the X-Men seem to be based on the 90's cartoon show, and thus the Jim Lee designs. (Except Wolverine and Storm, who have their Astonishing looks). Beyond that, the game takes a Pragmatic Adaptation approach, mixing and matching various portrayals into a new whole—including one level featuring the comic version of one character (the Mandarin) and the movie version of another (Aldtrich Killian).
In LEGO Indiana Jones, the final bosses of their respective movies had "Hit and Run" or "Escape" strategies, so the fights were just running around hitting the boss. The sequel looks to remedy this though with the encounters mentioned on the page, by changing up the events of the films a bit.
Best Boss Ever: The fight with Blackbeard is considered as such by some, probably helped by the fairly unique way of fighting him.
So is Palpatine due to a change made to the movies to match with how the games play: Vader pulls his Heel-Face Turn early, leading to Luke and Vader vs. Palpatine. Helps that he's something of a Final Exam Boss.
Marvel Super Heroes' final battle against Galactus quite possibly dwarfs them all (no pun intended), which is especially notable since this game has many other boss fights that could be included here.
Bonus Feature Failure: The 100 Percent Completion prize in LEGO Star Wars III is... A Stealth Bomber, for the flight levels, something that you will probably never use due to preference for just preferring to control characters on normal levels.
Complete Monster: Lex Luthor. Brainwashing most of the US to secure his election victory puts him well over the Moral Event Horizon, but what secures his place here is his attempt to tear down Wayne Tower and murder everyone inside, purely out of spite for snubbing him at the Man of the Year awards.
Loki, in Marvel Super Heroes, actually takes control of Galactus to ensure the complete destruction of both Earth and Asgard. All the other villains, including Red Skull and Doctor Doom, were at least trying to save the world (if only so they could conquer it later, but still).
Even Better Sequel: The Original LEGO Star Wars was great, but rather limited, but when 2 came along, it got rid of several of the limitations, becoming a bit more fun. The Complete Saga could count as well, since it revised the original game's levels to take in the newer gameplay elements of the second game.
Game Breaker: Superman can't be killed (by anything without Super Strength, at least), can fly, destroys everything he touches in the overworld, and has four different abilities. Wonder Woman and several other Super Heroes count but Superman is unlocked while the main game is still in motion.
Invincibility is featured in all games as a power-up to unlock. Granted the games are already simple, but some of the in-game cheats provide effects that are God Mode incarnate. EspeciallyStar Wars: The Complete Saga, but that game has thirty six stages to search compared to the others so it makes perfect sense.
The Stud Multipliers, especially as they stack (except in the DS versions, save Rock Band and Indiana Jones 2, where you probably have gotten everything anyway). How does a multiplier of 3840 (2x4x6x8x10) sound?
Game-Breaking Bug: It is impossible to 100% the PC version of LEGO Indiana Jones. In "Escape the Mine", one of the enemies on the left never comes within reach of your shovel. Since you need to hit him to get the artifact, you are barred from getting it and thus barred from the bonus levels.
Goddamned Bats: Probe droids fighting in the Battle of Hoth will launch their own tow cables to pull the bombs you tow.
It's the Same, so It Sucks: Easily the most common complaint about the series - the games are in essence Strictly Formula with only minor differences. Even many LEGO fans aren't interested in the later games for this very reason.
Numerous features introduced in the LEGO Star Wars sequels actually made their debut in the Gameboy Advance version of the first game. For example, the Jedi Mind Trick, Lightsaber Throw, and invincibility power-up, which would not be introduced to the console versions until The Original Trilogy, The Clone Wars, and The Complete Saga, respectively.
A lot of fans reacted in over-the-top ways when they found out LEGO Batman 2 was going to be the so-called "first" LEGO game with voice acting. Itwasdonecountlessothertimesinthepast. Heck, some people aren't even aware LEGO games before these even existed. To make it worse, the box itself actually claims this is the first LEGO game to have voices, period.
Scrappy Level: The podrace in the first game. The player must finish nine different sections of the race under very strict time limits and so as even slightly grazing anything is instant death. Thankfully The Complete Saga removed these problems but left the original Nintendo Hard version in as a Secret Level.
LEGO Batman. "Zoo's Company". Lily-Pad Bouncing Segment. That is all.
"Crab Cake Confusion," the Treasure level in the wreckage of the Coronado in Indiana Jones 2. It's really only a scrappy level due to the way the game's jumping mechanics work (or don't) and the platform placement.
"Perilous Parking" in the Berlin stage requires you to jump a Jeep onto a fairly small platform, ride a badly-controlled motorcycle up a ramp, and jump a horse across several high columns to weigh down buttons.
The Forbidden Forest levels in Harry Potter Years 1-4. Not particularly hard levels, but there are a lot of lego flowers and bushes lying around and if you want those LEGO studs for True Wizard (not to mention buying unlockables), you need to spend a good amount of time destroying all of them.
Motorcycle Escape from Lego Indiana Jones is an absolute nightmare from start to finish. From the moment you leave the first area you're assaulted non-stop by enemies with guns that appear about 4-6 at a time and respawn after about 5 seconds. You can't attack from your motorcycle, so you have to constantly dismount (or stop the puzzle you're solving) to deal with them. As if that's not bad enough, the last area of the level contains four turrets with one-hit kill rockets that are nearly impossible to avoid, and more infinitely respawning enemies that now have one-hit kill rocket launchers. Have fun!
Vehicle levels tend to be rather annoying in general.
Stop Helping Me!: Seeing the same types of hints/restrictions for the same types of special blocks/switches every single time you pass in front of them, especially when trying to solve a completely different puzzle in the same area, gets very irksome.
Lord of the Rings. The Dead Marshes. Gollum's "This way, hobbits!" very quickly becomes a Most Annoying Sound.
Surprisingly Improved Sequel: Lego Star Wars 1 was a suprisingly good licenced game but Lego Star Wars 2: The Original Series added a lot of improvments like Melee attacks for all characters, allowing non-force users to build and adding Gold Bricks for bonus content.
Lego Marvel Superheroes is one to Lego Batman 2: DC Superheroes in terms of open world super heroing with improved flight mechanics, a more interesting overworld with different sidequests and remembering there was more than 3 superheroes to play as.
That One Level: Flying levels tend to be some of the most frustrating in the LEGO Star Wars games, due to piloting controls.
LEGO Indiana Jones has vehicle races within level hubs that are particularly frustrating due to twitchy controls and cumbersome terrain (especially if the screen is split in half by two-player mode).
"An Icy Reception" in LEGO Batman. Almost the entire level is situated on catwalks over a precarious Bottomless Pit, and some of the platforms have rather dodgy hit detection. Filling up the Super Hero Bar is more or less impossible in story mode due to the incredibly strict amount of studs you need. It certainly doesn't help that Mr. Freeze is That One Boss who can kill both players in less than one second. To top it all off, it's the 'second'' level.
In LEGO Batman and LEGO Batman 2, there are several chase levels. Be assured that, if there is flying involved, you will be intensely frustrated.
That One Sidequest: Lego Batman: Arctic World's minikit canisters on the ice slide, where you have to pass through five or so gates. You only get one try, and if you mess up, you have to restart the lengthy level again.
A few of the levels in LEGO The Lord of the Rings, particularly "The Black Rider" and "Mount Doom," feature high-speed running sequences. There's usually a treasure minikit hidden in one spot during these, and you only have one chance to get it each time you attempt the level. The altered checkpoint system does alleviate this a bit by allowing you to quit the level without saving and start over at at the beginning of the chase, but it's still not easy.
The Slytherin Crest in the Magic Is Might level of Harry Potter 5-7. Not only is it hidden behind a pillar, but you are being chased by Dementors so you have very little time to detour for it. Plus, if you miss it or get caught by the Dementors, it respawns you after the Crest, so you have to play through the entire level and redo the very long boss fight for another shot at it.
Pandering to the Base: There was a fan campaign to have Venom be a Big Fig or be able to turn into one (to more accurately represent the fact Venom is huge). They actually succeeded and Venom can turn into a Big Fig. Before this, Gambit was one of the characters put in because fans really wanted him in the game.
The Problem with Licensed Games: Given the positive response the series has been getting over the years, this has been handily subverted. Note that each game technically comprises two licenses, making it even more of an accomplishment.
They Changed It, Now It Sucks: A self-contained example, several fans were let down after finding out that Green Goblin could not transform into Ultimate Green Goblin, despite early demo videos showing that he could.
Uncanny Valley: Well, they're LEGO figures, so they were never meant to look realistic, but in the first two Star Wars games the character's eyes were plain black dots that seemed rather ... soulless. The later games fixed this by adding a white dot inside the black dots that could act as a pupil.
Earlier pictures of Thing for LEGO Marvel showed him with a nose, which it rather out-of-place for a Lego character. Thankfully, it was removed for the final game.
Unfortunate Implications: Literally all of the non-white characters in LEGO Harry Potter are grouped together in the character shop, even those in different years, houses, and points at which they're unlocked.
Video Game Movies Suck: Inverted depending on your opinion regarding LEGO Batman: The Movie - DC Superheroes Unite.