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: Batman Forever
Asshole Victim: Fred Stickley. There's dealing with a difficult employee and there is going out of your way to verbally put him down at every opportunity you can find. No wonder Nygma snapped.
Awesome Music: Two particularly memorable singles from the movie, "Hold Me Thrill Me Kiss Me Kill Me" by U2 and "Kiss From A Rose" by Seal (which won him four Grammys, including Song of the Year). Elliot Goldenthal's score was not too shabby either, but your mileage may vary as to whether or not it was up to snuff with Danny Elfman's music.
The soundtrack is top-notch, including covers of "The Passenger" and "The Hunter Gets Captured By The Game", "Smash It Up", "8", and one that's totally appropriate for The Riddler: "Bad Days".
Alfred pretty much had the same reaction the audience did.
Contested Sequel: It's considered either fun despite being inferior and Lighter and Softer, or just outright disgraceful. On the other hand some people prefer it over its predecessor for giving Batman more screentime, and treating him more heroic rather than the borderline sociopath.
Ham and Cheese: Downside; the first movie in the franchise to have Bat-Nipples™. Upside; Jim Carrey babbling about "brainwave manipulation", stating that his neon wardrobe keeps him "safe while jogging at night." Ham and cheese on rye.
Tommy Lee Jones, who seemed to have a rip-roaring good time playing Two-Face.
Dick Grayson claiming he's Batman. Or mayber a reverse version since he was handed the mantle briefly in 1994 for the Progidal storyline.
Ho Yay: Two Face and the Riddler are getting pretty affectionate towards the end of the film.
They were cuddling.
The Riddler's last outfit change is inspired in Two Face's half suit half Elton John outfit. And he acts like a fanboy when he sees Two Face on Tv for the first time. Two Face is what inspires him to become a villain, and the first person he goes to see after his dramatic change. Fanboy much?
Foe Yay: The screenwriters and Jim Carrey describe Nygma's obsession with Bruce as "love" and "like a stalker".
In Name Only: Debatable. Some fans think Two-Face in this movie is more or less the Joker in personality, with Tommy Lee Jones even giving a performance similar to Jack Nicholson's. There is an internet joke that Two-Face is Nicholson Joker #2 and Riddler is Nicholson Joker #3.
There were also 8-bit versions (Game Boy, Game Gear) as well as a PC version that was similar to the SNES game with added CGI cutscenes. A 32X version was cancelled. A totally different game inspired by the same movie was released on the arcades, also by Acclaim. It was more similar to traditional sidescrolling brawlers like Final Fight. There were ports for PlayStation, Sega Saturn and PC. Needless to say all these versions were panned by players and critics alike and Batman Forever as a video game became synonymous with The Problem with Licensed Games.
Vindicated by History: A very mild example. People still don't care much for the film and cite it as the moment the series went downhill but are at least willing to admit that it was nowhere near the catastrophe that Batman & Robin was.
Actually an inversion. It was received more favorably when it first came out. After Batman & Robin Forever got lumped with its successor and became known as the "downhill of the franchise"
What an Idiot: Gotham Police Officer: (Pointing to a giant green question mark above the Bat Signal) "Who the hell's doin' that?!"
Commissioner Gordon: (In reference to the green question mark, which is a laser beam quite obviously being projected from Nygma's island) "Where's that comin' from?"
What The Hell, Casting Agency?: The script clearly indicates that Dick Grayson is supposed to be pretty young (early to mid-teens, probably). They cast Chris O'Donnell, who was 25 at the time and looks it. This makes a lot of the scenes focusing on his character creepy, nonsensical, or both.
Especially since he's referred to as a "boy" on multiple occasions, and explicitly so in the novelization.
Oddly, there's a Lampshade hung on O'Donnell's age, when Bruce refers to "Dick Grayson, college student" as Dick's future "secret idenity".