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This page contains cultural references that can be found in Neptunia: Sisters vs Sisters.
Quotes
Video Game Parodies
- Fortnite: When Anri asks Nepgear about this app on her phone, Nepgear refers to this game as Castle Night. Anri then follows it up by stating that it's a really popular game not just on smartphones, but also on PC and consoles.
- Gensokyo: Although Alice is a permanent Touhou reference, in one sub-event she directly talks about Gensokyo, the fictional location where Touhou takes place. She even takes Neptune with her there and talks about that everyone really liked her. Alice also talks about Gensokyo in a Chirper message.
- GiGO Arcades: In a sub-event, Neptune comments that after discussing with Histoire, Planeptune is going to pull out all arcade operations, but they will not close, they will just not be involved anymore. This is a reference to GENDA acquiring Sega Entertainment and starting managing all Sega arcades in Japan, which were renamed to GiGO.
- KFConsole: In a chirp made by Vert, she mentions a gaming PC that can make fried chicken.
- Mortal Kombat and Street Fighter: In a sub-event, Maid B wanted to request a fighting game like "Immortal Battle" or "Road Fighter: The Movie".
- Nintendo go-kart lawsuit: In a sub-event, Blanc, Rom and Ram are harshly pursuing people in go-karts cosplaying as Lowee characters without permission, referencing Nintendo's lawsuit against Tokyo MariCar go-karts company. Rom also comments that nobody wants to mess with "Lowee's super powerful legal department".
- Sony censorship: In a sub-event, Blanc complains that she is having trouble with immigration after many people wanted to leave Lastation due to the new content regulations. Noire says she won't get into details, but she will firmly maintain the new regulations.
- PlayStation 5: Neptune begs Noire for Lastation's latest hardware after seeing the hardware sold out in a game store and losing a lottery to get one. Noire responds by mentioning that they don't have enough supplies to make more, referencing the high demand of the console after launch.
- Pokémon GO: Nepgear refers to this game as Pocketed Monstrosities GO when she mentions about one of the access points in Leanbox.
- Taiko no Tatsujin: In a sub-event, Maid A wanted to request a music game for the arcade and refers to it as "Taiko Don Don".
Other Parodies
- COVID vaccines: In a sub-event, Compa complains that some bad healthcare rumors are going to have an impact in her work. IF adds that an example of said rumors is that, if you are vaccinated, you can be controlled by 500G radio waves, referencing some anti-vaccine movements during the COVID-19 pandemic.
- Doraemon: At the other side of the wall of the laboratory, Neptune comments that it is like a 4D pocket like the one from that "blue cat robot from the future".
- Harry Potter: When passing through the wall at the laboratory, Nepgear comments that you cannot pass if you go slow, but if you hit it really hard, you can pass. Maho then says that is "just like those wizard kids", referencing the Platform 9 3/4.
- Instagram and TikTok: Ram mentions a picture she uploaded on "Bihstagram" and a video she posted on "Sik Sok", referencing the two social media sites.
- Isekai Ojisan: In a sub-event, Nepgear encounters Fumitaka (Takafumi in the real series) and his uncle, who has been several years in an isekai. The plot derived from the conversation is pretty much identical to the real series.
- PETA: Rom mentions a letter that Blanc received from the "Gamindustri for the Ethical Treatment of Animals" about Lowee's newest game, referencing how Nintendo gets accused for their use of animals in their games.
- Press Your Luck: When Maho collects a treasure, she says "Come on, big money, big money!", referencing how the contestants root to get "Big Bucks" in the game show.
- Xbox Series X Mini Fridge: In a sub-event, the goddesses talk about the release of the "mini consoles". Vert says that she will not fight that war, to which Noire responds that she will believe it once she gets out of the mini fridge bussiness.
Monsters
- Mutant Carapace: The description mentions this monster is neither a ninja nor a teenager, referencing the Teenage Mutant Ninja Turtles.
- Patrol Bit: The description mentions this monster wears the same red lamp used on the helmets those escaping apes wear, referencing the apes from Ape Escape.
Items
Weapons
Uni
- PCV-1000: References the PlayStation Vita's first generation model, PCH-1000.
Accessories
- Android Eyepatch: References YoRHa No.2 Type B from NieR:Automata.
- Angel's Club: References Dokuro's weapon, from Bokusatsu Tenshi Dokuro-chan.
- Camera Head and Patrol Head: References the characters seen in the NO MORE Eiga Dorobo anti-piracy ads in Japan.
- Clown Nose: The description references Pennywise from the Stephen King novel It.
- Explorer's Hat: References Riko's helmet, from Made in Abyss.
- Gold Tricycle: References Giorno Giovanna's front hair curls.
- Hero's Shield: References the Hylian Shield from The Legend of Zelda series.
- Human Hat: References the hat of Kaban, a character from Kemono Friends.
- Legendary Idol Ribbon: References Kizuna AI's ribbon.
- Master Players Sword: References Kirito's dual swords, from Sword Art Online.
- Serval Ears: References Serval, a character from Kemono Friends.
- Straw Hat: The description references Monkey D. Luffy from One Piece.
Support Items
- 103,000p Book: Reference to all the books that Index has memorized, from the A Certain Magical Index series.
- 3D Move Gear: Reference to the Three Dimensional Maneuver Gear from Attack on Titan.
- Bunny Coffee: References Is the Order a Rabbit?
- Electric Rat: Reference to Pikachu.
- Floppy Banana: Reference to the gel bananas from Steins;Gate.
- Golden Mosaic: Reference to Kiniro Mosaic.
- Hedgehog Doll: Reference to Sonic the Hedgehog.
- Nakoto Maegi: Reference to Makoto Naegi from Danganronpa.
- Spiral Drill: Reference to Tengen Toppa Gurren Lagann.
- Timely Ocarina: References the Ocarina of Time from The Legend of Zelda series.
People
- Bannedjo Kaphooey: A reference to Banjo-Kazooie.
- Kirio: This scout is a reference to Kirito, from Sword Art Online.
Trophies
- That Darn Dogoo: References the 1965 film That Darn Cat!
- Don't Call It a Comeback: References the LL Cool J song "Mama Said Knock You Out".
- Goddess of War: References the God of War franchise.
- Like a Butterfly: References Muhammad Ali's famous quote "Float like a butterfly, sting like a bee."
- Goddesses, Assemble!: References The Avengers.
Other
- The Compile Heart opening logo used in promotional videos is a reference to the Metro-Goldwyn-Mayer logo.
- The rPhone is a reference to the iPhone.
- In the Planeptune Game Lounge, there are multiple games that can be seen on the shelf:
- Gulint Turismo: Gran Turismo
- Hakumouki: Hakuoki series
- Joy Robo Fight: Joy Mech Fight
- Mary Automata: NieR: Automata
- Nep Kart: Mario Kart
- Panel de Pingpong: Puzzle League/Panel de Pon
- Story Fighter: Street Fighter
- Xemogears: Xenogears
- The ending credits has references to multiple games, including EarthBound, The Legend of Zelda: Link's Awakening, Mario's Picross, Sonic the Hedgehog 2 (8-bit version), and Medarot 2.