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.
The music that plays when Boss and Spongehead show up, notably in the first game.
The Squidfather could be this.
Kids who played Maze Madness were often terrified of the sounds the enemies made and how some of the music always had an eerie feeling, like the music from levels 46-50.
The music that plays in the sunken ship in the fifth game is extremely creepy.
Moral Event Horizon: Averted. In "Eddie Eats Luther", Freddi seemingly crosses it when she feeds her friend Luther to Eddie the electric eel. Of course, that was just her imagining this. It was also non-canon to the game.
Most Annoying Sound: In ABCs Under the Sea, Freddi and Luther's voice clips can get pretty repetitive, at least if you aren't part of the game's target audience. They can be quieted or muted, but only along with the other sound effects.
Needs More Love: Maze Madness is now an obscure, mostly unkown computer game that kids who grew up in the 90's played with. It's pretty unfair because, other than the limited level editor, Maze Madness is a fun and challenging game, with excellent level designs, difficult bad guys, and fun gameplay.
Pandering to the Base: The series was originally based around problem solving with several educational values buried within the gameplay and several humorous moments, making it fun for kids and adults. Nearly a decade after Atari's buy-out, they got 1st Playable Productions to create ABCs Under the Sea, a game based around learning about letters, words, numbers, directions, and colors. What the heck. And despite this, the game tries to ride on the previous installments' success by pointing out that it's from the award-winning series with 15 million copies sold worldwide...not mentioning that the rest of the series was made by different people. (Additionally, one of the game's alternate titles is ABC's Under the Sea, which is grammatically incorrect.)
That One Level: Level 24 of Maze Madness. Not that it's hard, but it's very long and tedious.
They Just Didn't Care: "Frankly, Freddi" on the old Humongous web site was a place where you could ask Freddi a question and she'd respond. Thing is, the person(s) who wrote these answers hardly put any thought into the answers, and we ended up with several Captain Obvious answers that could have been awesome to finally know about. A few examples: Freddi's parents names are Mr. and Mrs. Fish, and Freddi apparently first met Luther the first time we saw him in the games.
Viewer Gender Confusion: Quite a few didn't know Freddi was a girl until they played the fourth game, where her gender gets uttered at the very beginning. It doesn't help that she was called a guy at the end of the first game. Her gender can be determined as early as the second game, though, when the player gives Mr. Triplefin his business card. Mr. Triplefin called the two of them boys, at which Freddi corrects him that she is a girl.