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.
Bellisario's Maxim: Not everything about this computer world really makes sense as related to how we use computers. It is just an interesting setting, as well as way to bypass fan comments related to the computer limitations. Like "Why are there no shadows?" "Uh...It's inside a computer!"
Hexadecimal: Nevermind, it will be glorious!
Cliché Storm: Certain episodes have their entire plot built quite literally on a long string of cliches, but it is either done as an Affectionate Parody or otherwise knows what it is doing.
Complete Monster: If anyone can qualify in this show, it's Megabyte.
Continuity Drift: Later seasons firmly establish that nothing can penetrate the outer wall of a game cube. However, in 'Identity Crisis (Part 2)'' Phong was watching Bob and Dot's progress in the game and later entered the game himself. This is never reconciled and promptly ignored.
Epic Riff: The episode dealing with Enzo's birthday sees Megabyte roll up with an electric guitar and play an absolutely face-melting solo. It then turns into a Power of Rock showdown between him and Bob for even more epic.
Also a Crowning Moment of Heartwarming when, rather than causing trouble, Megabyte gives his guitar to Enzo at the end of the duel.
"Funny Aneurysm" Moment: Megabyte and Matrix's brutal fight at the end of season 3 makes the earlier moment where Megabyte gives Enzo a guitar for his birthday seem a lot less funny than it originally was.
Growing the Beard: The first two seasons were fun and entertaining, but excessively hampered by Moral Guardians that hindered the growth of a more mature show, they weren't allowed to cut to a commercial with someone in immediate peril (like falling off a cliff) for fear of upsetting the children. The final four episodes of the second season started up some more thematically interesting stories with a continuing storyline that fed through the rest of the series, which really hit its' stride in the first few episodes of the virtually censor-free third season.
Nintendo announced that their next console would be called the "Nintendo GameCube." The fact that the console's default color was purple did not hurt.
Mouse: "Wow! Now THAT'S what I call a bug zapper!"
Dot: "I don't believe it! We've been saved by a game cube!
Another episode featured a brief gag (aired in 1997) that had a battleship called the SS Cameron catching fire and sinking. This was in reference to the obscenely overbudget fiasco of Titanic and what people were predicting of James Cameron's career...
The number of VA's Reboot has in common with Adventuresof Sonic The Hedgehog. In particular, for the first two seasons, Hack and Slash were played by the same actors who played Scratch and Grounder, also inept villainous robot mooks.
Hype Backlash: The fourth season came out after being uncanceled three years after the third season. With all the Fan Fiction and rampant Wild Mass Guessing from the fandom (with no expectation of ever getting a resolution), there were bound to be a few accurate theories and a few fanfics that proved to be a more satisfying conclusion for the Daemon arc.
Dot from the third season, once Mainframe Entertainment ditched the ABC network and the broadcast standards and practices that prevented her from having a chest more defined than a vaguely curved monobreast. The Evil Dead game episode is clearly a celebration of Dot's new cleavage!
Nightmare Fuel: Comes in high doses in Season 3. Quick rundown:
Enzo, Andraia and Friskett playing a Mortal Kombat spoof, complete with an unbeatable User who slashes out Enzo's eye. In order to escape nullification (which is a HONF concept in its own right) they have to entire Game Sprite mode and leave Mainframe with the Game, leaving Dot to think that her only family was nullified. Oh, and Enzo and Andraia? They're KIDS.
Enzo and Andraia are stuck in a never ending cycle of violence as they travel from system to system via the games.
When they finally do return to Mainframe they find that Megabyte was able to take over and turned it into a warzone.
Phong is decapitated by Megabyte and his head is tortured into giving up the passcode needed for Megabyte to infect the super computer.
Uncanny Valley: Hex's Dot impression in the video game looks right, but maintains or even exaggerates Hex's signature walk with the swinging arms and the sashaying hips. Fetish Fuel turns into Nightmare Fuel when Hex's mask is removed in the form of Bob pulling off Dot's face, complete with squick sound effects.