Firstly, there's the sequence at the beginning where Daffy Duck takes over the Warner Bros. logo from Bugs Bunny, attempts to move it back into place, and then ends up with it around his waist.
Later, while Billy is heading to the Clamp Building, policemen in body armour armed with rifles escort an armoured van, which opens up to let out mimes. This is given absolutely no explanation whatsoever and has no relevance to the plot.
When the conversation between Dr Catheter and Billy begins to skip, slow and distort, then revealing Gremlins in a theatre showing the film playing shadow puppets. A woman with her daughter comes out to complain to the theatre manager, then the projectionist, looking bruised and bloodied, comes down, stating he is not performing that task without heavy compensation.Then, the theatre manager goes into the theatre and speaks to a patron, who turns out to be Hulk Hogan, and manages to get the movie running again by threatening to beat up the pesky Gremlins.
For the home versions, the scene was replaced with a similar bit where the Gremlins ruin the tape the viewer is watching. This prompts John Wayne to gun down a few of them and return us to our movie. "I don't need varmints on my ranch, and you folks don't need them in yer TV set."
And finally in the novelisation, the Brain Gremlin locks the author out of his study and swipes his typewriter, briefly taking control of the narrative until taking off when the author takes a fire-axe to the door.
Leonard Maltin dissing the first movie on his show, only to get attacked by gremlins.
Broken Base: Because the two films are so radically different in tone, it's practically an even split between fans who prefer the darkly comic angle of the original or the manic, live-action cartoon vibe of the sequel. Finding someone with an equally positive opinion of both is fairly rare.
Harsher in Hindsight: When the movie was released, June 1990, the gremlins planning to demolish the Statue of Liberty with military grade ordinance served as quick throwaway gag. In February 1993, a 1,000 lbs+ bomb went off beneath the World Trade Center, killing six, and in 2001 the Twin Towers were knocked down.
And of course, the "goofball millionaire" turning into the "Corrupt Corporate Executive" also applies to the character inspiration himself.
A LEGO Gremlin (provided by the LEGO company itself for the production) is seen in this picture as Mohawk tortures Gizmo in the toy department, decades later, the Gremlins franchise is one of the licenses to be added to LEGO Dimensions that features Gizmo and Stripe.
Also counts as Technology Marches On: When lights in Billy's office go out because he didn't move for a while, it was meant to show how hi-tech and computerized the building was. Now that even fast food restrooms have motion sensors, the problem of being suddenly plunged in darkness when you sit still for too long is much more familiar to everyone.
Christopher Lee plays a character who's suddenly killed by an electric shock. Lee would later play CountDooku, who is no stranger to weaponizing lightning powers.
Ho Yay: Between George and Lenny. Then again, all Gremlins are asexual...
Narm Charm: The long shot of Gizmo running is an obvious composite shot, but adorable.
No Problem with Licensed Games: The NES game adaptation by Sunsoft is fondly remembered for its active gameplay, its faithfulness to the movie it was based on and its amazing soundtrack as well as its advanced graphics. It was even nominated for several awards.
They Wasted a Perfectly Good Plot: Brain injects the Winged Gremlin with a serum that makes it immune to sunlight, allowing it to wreak havoc outside in the daytime. The Gremlin's rampage doesn't last very long, as it's deposed by Murray after only a few minutes, and there are no further attempts to recreate the serum that would have rid the Gremlins of their greatest weakness.
Greta, the female gremlin, especially in a wedding dress.
Daffy and Lenny are somewhat less uglier than the other gremlins,maybe because of their highly cartoony designs.
Visual Effects of Awesome: While the puppets in the first movie are still decent after all this time, the ones in the second film are much more improved, and hold up a lot better than the first one. The Gizmo puppet even gets to move in full-body shots.