Pretty Cure: Agents of Romero has thus far been confirmed to feature examples of:
Actor Allusion: Rupert Grint repeats a line from his earlier film career, word for word, in the English dub when Daisuke (in Cure form), after Rica calls Ayeka out for taking pride in simulating boners, says, "She really needs to sort out her priorities." Difference is, he says this not aboutEmma Watson, but toEmma Watson (he was talking about the one she had called out for being a slut).
The Aristocrats: The narrator of the pilot OVA mentions that the goings-on in the pilot could make for good Aristocrats material.
Ashes to Crashes: As with Return of the Living Dead, burning the living dead isn't a very good idea; however, like all other rules of a zombie movie, the enforcement of that one varies here, as some time after the Cures find that out the hard way at the funeral parlor owned by Rica's grandfather, Rica herself burns another zombie at a different funeral parlor with little to no ill effects on the atmosphere.
Atomic F-Bomb: When Yuu's offhand remark about him being a pervert at the end of episode 1 leads Daisuke (in Cure form) to look at what he's wearing, he discovers that he's wearing a VERY girly outfit. He makes the most of this trope.
Crosses the Line Twice: The pilot OVA does this at least a couple of times, with a brief vulgar monologue about how bad Room 4 smells and a maid letting out some perverted thoughts about what's going on in Room 4's bathroom before she's brutally murdered, respectively.
From episode 2:
Daiskue: It's like getting an erection on the high-dive, only it's made of lace and glitter and never goes down. Rica: Lace and glitter, huh? I hope I never get such a boner... oh wait, I can't even get a boner; I'm a girl! Ayeka: But girls like me, at least we can simulate a boner and look good while doing so. Rica: Shut your trap, slut.
Crowning Moment of Funny: At the mall, Ichigo basically does what Osborne from Hell of the Living Dead did in the film's most infamous scene (except in Ichigo's case it's to recorded music—specifically, the song "There's No Matter" from Zombi 2. Unlike with Osborne, though, he doesn't get bitten. Megumi, though, takes the time to call him on his foolishness.
Megumi: Jesus Christ, Ichigo! Have you ever seen Hell of the Living Dead? Ichigo: Why, yes, actually! Osborne's my favorite character! Megumi: Well, then you should know that Osborne exposed himself to the zombies by dropping everything to prance around wearing a tutu and a top hat! Ichigo: Are you kidding? There are no zombies in the mall. Megumi: Indeed, there's no sign of the walking dead. But if walking corpses were inside the mall you'd be endangering yourself right now.
Dance Battler: Ayeka Hayashi and Cure chorgh incorporate ballet into their fighting styles, and Rica Asakura does the same with capoeira. By all rights Cure wa' should be one as well judging from his costume alone; however, his costume looks more like what a heroine from Suite Pretty Cure ♪ would wear than what a ballerina would wear.
Different In Every Episode: Cure chorgh's "Pretty Cure Dance of Charm", which will always involve some pointe work, including, on several occasions, multiple fouettés en tournant.
Doujinshi: Takuma once wrote a full-length one about five of the Cures before they even became Cures in the first place; unsurprisingly, he gets too many facts wrong (although Daisuke does admit that it would be nice if his own Cure outfit was closer to how Takuma envisioned it).
Fangirl: Rica, as far as Highschool of the Dead and Zombi 2 are concerned, to the point where she has the theme song on her iPod, wears a Zombi 2 T-shirt with her casual outfit, and owns the following VHS copies of the films:
Highschool of the Dead:
Wizard Video 1980 Betamax 3D (Highschool of the Dead)
CIC 1980 Japan Betamax 3D (Gakuen Mokushiroku/Academy Apocalypse)
I Know Karate: Kasumi in Cure form; while she had no formal ballet training in her civilian identity, her Cure form is practically a prodigy at her age, even an expert. Ayeka agrees to teach her ballet in civilian form after seeing her Cure form's Dance Battler potential. In a straighter example, Rica is adept at capoeira.
Instant Cosplay Surprise: It's a wonder Daisuke never noticed he was dressed as a girl in Cure form throughout the first fight. And then we get this exchange, which finally lets him know exactly what he's wearing:
Mercy Kill: Daisuke does this to Haruhi in episode 1 after the latter discovers he'd just been infected. Rica also tries to get him to bash her head when she herself gets infected, but Daisuke hesitates and Rica comes back as one of "them". Good thing there was a cure for the zombie infection at hand, and Rica does get cured, but not before biting the scientist that had made the cure. Before Kasumi visits this trope on the poor guy, he orders the protagonists to use the cure on Rica. Daisuke does so... and then no movement from Rica for half a minute. Then, when Daisuke least expects it, an angry Rica grabs him by the shirtfront and pulls him down to snap, "I thought I told you to KILL me!" Daisuke manages to calm her down by assuring her that the important thing is, she's back with them, and this time for real.
Nice Hat: Rica wears an officer's cap with nearly all of her civilian outfits.
No Celebrities Were Harmed: The older teacher with the gray hair and slightly old-looking features resembles James Karen, and the younger teacher with the dirty blonde hair resembles Thom Mathews. Needless to say, Return of the Living Dead jokes abound whenever these guys show up. Appropriately, the author has given them the respective nicknames "Not-James Karen" and "Not-Thom Mathews".
Opera Gloves: Worn by Rica as Cure wej, surprisingly enough. She doesn't seem to mind, though, as long as she isn't wearing a skirt.
Real Women Never Wear Dresses: Rica is more hardcore about this than any other Cure, fanmade or canon; not only has she never once worn a skirt, she even outright states early on that she's the type of girl that will eventually make skirts obsolete. Of course, she merely fulfills the letter of the trope; as for the spirit of the trope, she's as good a chef as Kyoko and collects classical music (she even states in episode 2 that she has CDs of every ballet that Ayeka's recitals have been set to). She also studied gymnastics for a few years with Daisuke and Yuu, wearing a tank top and leggings like the boys of that class (as is her style).
The scientists' funeral is a direct reference to the end of Star Trek II: The Wrath of Khan, but moreso to Ma-Ti's funeral from Suburban Knights (complete with the casket bearing the scientists' body rolling slowly into an oven as Daisuke plays "Amazing Grace").
Apart from Rica's full-scene recitation, she also says a few lines from Zombi 2 as stand-alones, including "Ora lo yacht può partire. Lo dica gli altri." ("The boat can leave now. Tell the crew.")
Tights Under Shorts: Worn by Kasumi as Cure chorgh. Rica also sports this while at Nana's house.
Tomboy and Girly Girl: Rica is a Bifauxnen and Zombi 2Fangirl who can go Guns Akimbo on your ass if you're a zombie. Kasumi is not really high up on the tomboyishness scale and just happens to prefer slacks, wearing either them or shorts with all her outfits even when studying ballet under Ayeka. Interestingly, both Rica and Kasumi wear jean shorts with their Cure outfits.
Who Wears Short Shorts?: Both Rica as Cure wej and Kasumi as Cure chorgh. The latter is actually a rare cute ballerina example (although she doesn't have any training in civilian form until Ayeka starts teaching her); true to her form, she even pairs this with white tights and purple ballet slippers!