Single Player Video Games (Red) vs. Multiplayer Video Games (Blue).
Single player video game example: Amnesia: The Dark Descent, Contra, Metal Slug, Shantaeand Super Mario Bros. (Red) vs. Multiplayer video game example: Counter-Strike, Dota 2, League of Legends, Overwatch and Team Fortress 2 (Blue).
Action RPGs (Red) as compared to Tactical RPGs (Blue).
Real Time (Red) vs Turn Based (Blue).
Real-time strategy games:
Command and Conquer series (Red) and BlizzardRTS games (Blue).
Blizzard RTS games:
The first game of StarCraft (Red) and Warcraft III (Blue).
StarCraft series:
The Original Game (Red) and it sequel (Blue).
Sega (Red) and Nintendo (Blue). The logo colors might suggest the opposite.
The same goes for their respective mascots, Sonic (Red) and Mario (Blue), in terms of game play, personality, and overall aesthetic. It's especially ironic since, like the company logos, Sonic is associated with blue, and Mario with red.
DC Comics (Red) vs. Marvel Comics (Blue). The logo colors might suggest the opposite, but The DCU is an idealistic place where superheroes usually triumph, don't have to worry too hard about secret identity problems, and are generally liked by the people, while the Marvel Universe is the poster boy for superheroes who aren't liked by the public and have to deal with real-world problems like finance and health.
DC series example: Superman and Justice League of America (Red) vs. Marvel series example: Captain America and The Avengers (Blue).
It can be said that the two companies have traits of both. DC being the more optimistic, whimsical setting, but with more traditional, archetypal characters; stoic, upright crusaders of justice, presented as mythic, god-like figures for the reader to look up to. While the Marvel Universe takes place in a more cynical world with heroes that are seen as more relatable and fallible, having to deal with realistic every day problems, but presented in a way that's more high-octane and over the top (especially during Stan and Jack's tenure), and are often sold as a more rebellious and cool alternative to DC. To put it one way, DC can be looked as a Red Oni universe, and Marvel is a Blue Oni universe.
Media about All Guys and a Girl (Red) and Media about All Girls and a Guy (Blue).
The main male characters with a girl media example: Bravest Warriors, Gorillaz, Justice League, Metal Fight Beyblade and The Smurfs (Red) and The main female characters with a guy media example: Chrono Crusade, Dora's Explorer Girls, KonoSuba, The Loud House and Sailor Moon (Blue).
Shōnen (Red) and Shōjo (Blue).
Shonen series example: Bleach, Dragon Ball, Fist of the North Star, Naruto and One Piece (Red) vs. Shojo series example: Cardcaptor Sakura, Fruits Basket, Mamotte! Lollipop and Sailor Moon(Blue).
To put it one way, Shonen can be looked as a Red Oni demographic, and Shojo is a Blue Oni demographic.
Console Gaming (Red) vs. PC Gaming (Blue).
Let's Play (Red) and {{color|blue|Professional Gaming (Blue).
Japanese Video Games (Red) vs. American Video Games (Blue).
Japanese video game company example: Bandai Namco, Capcom, Konami and Square Enix (Red) vs. American video game company example: Activision Blizzard, Electronic Arts, Microsoft, Take-Two and Valve (Blue).
To put it one way, video games are made in Japan can be looked as a Red Oni games, and video games are made in the USA is a Blue Oni games.
Series-wide example: Mickey Mouse (Red) and Donald Duck (Blue)
Romanticism (Red) vs. Enlightenment (Blue).
Series-wide example: Star Wars (red) vs. Star Trek (blue).
Call of Duty
Black Opsseries (Red) and Modern Warfare series (Blue).
Series-wide example: Saints Row (red) and Grand Theft Auto (blue).
Fantasy (red) vs. Science Fiction (blue).
Space Opera (red) vs. Science Fiction (blue).
Fantasy (Red) vs. Dark Fantasy (Blue).
Adventure (Red) and Action (Blue).
Comedy (red) and Drama or Tragedy (blue).
Fantasy (red) and Western (blue).
Original series (red) and Spin-off series (blue).
Original series example: Super Mario, Total Drama, RWBY, Shrek and The LEGO Movie (Red) and {{color|blue|Spin-off series example: Donkey Kong, Total DramaRama, RWBY Chibi, Puss in Boots and Unikitty! (Blue).
Super Robots (Red) vs. Real Robots (Blue), most especially.
Combining Mecha, e.g. Combattler V, Voltes VGoLion/Voltron and Super Sentai/Power Rangers(Red) vs. non-combining mecha teams, e.g. Gundam, Super Dimension Fortress Macross, Armored Trooper VOTOMS, and Majestic Prince (Blue).
Japanese live-action series (Red) vs. South Korean live-action series (Blue)
Japanese Anime (Red) vs. American Anime (Blue).
Anime of Japan example: Demon Slayer, Dragon Ball, My Hero Academia, Naruto and One Piece (Red) vs. Anime of the United States example: Avatar: The Last Airbender, Ballmastrz: 9009, The Boondocks, Kappa Mikey and Voltron: Legendary Defender (Blue).
Between pairs of creators:
C. S. Lewis (Red) and J. R. R. Tolkien (Blue).
Robert E. Howard (Red) and H. P. Lovecraft (Blue).
This also applies to the genres they're the Trope Makers for: Sword and Sorcery (red) and Cosmic Horror (blue).
Steven Spielberg (Red) and Stanley Kubrick (Blue).
John Swartzwelder (red) vs Jon Vitti (blue), the two most prolific writers of The Simpsons for years.
Seth MacFarlane (Red) vs. Matt Groening (Blue).
Dr. Seuss (red) vs Maurice Sendak (blue).
Series-wide example: Looney Tunes (Red) vs. Classic Disney Shorts (Blue).
Television shows (Red) vs. Internet shows (Blue).
TV show is any content produced for broadcast via over-the-air, satellite, cable, or internet and typically viewed on a television set, excluding breaking news, advertisements, or trailers that are typically placed between shows. While the web television is original episodic online video content produced for broadcast on the Internet via the World Wide Web. To put it one way, TV shows can be looked as a Red Oni media, and Webshows is a Blue Oni media.
Adult animated sitcoms:
Family Guy (Red) and The Simpsons (Blue).
To put it one way, Family Guy can be looked as a Red Oni adult cartoon, and The Simpsons is a Blue Oni adult cartoon.
Mike Judge cartoons:
Beavis And Butthead (Red) and King of the Hill and Daria (Blue).
Seth MacFarlane cartoons:
Family Guy (Red) and American Dad! (Blue).
Bob's Burgers (Red) and Archer (Blue).
Roger Black cartoons:
Brickleberry (Red) and Paradise PD (Blue).
Works of DC Comics:
Superman (Red) and ''Batman (Blue).
Supercell games:
Clash of Clans (Red) and Boom Beach (Blue).
Cartoon Network (Red) and [adult swim], Disney Channel and Nickelodeon (Blue).
Warner Bros. (Red) and Disney (Blue).
To put it one way, Warner Bros. can be looked as a Red Oni company, and Disney is a Blue Oni company.
Disney Channel cartoons:
Phineas and Ferb (Red) and Gravity Falls (Blue).
Dan Povenmire and Jeff "Swampy" Marsh cartoons:
Phineas and Ferb (Red) and Milo Murphy's Law (Blue).
Nickelodeon cartoons:
The Loud House (Red) and The Casagrandes (Blue).
Butch Hartman cartoons:
The Fairly OddParents (Red) and Danny Phantom (Blue).
The Fairly OddParents (Red) and The Adventures of Jimmy Neutron, Boy Genius (Blue).
Cartoon Network cartoons:
Adventure Time (Red) and Regular Show and Steven Universe (Blue).
Genndy Tartakovsky cartoons:
Dexter's Laboratory (Red) and Samurai Jack (Blue).
Ben 10:
The Original Show (Red) and its two sequels are Alien Force and Ultimate Alien (Blue).
Total Drama:
The Original Show (Red) and its spin-off shows are The Ridonculous Race and Total DramaRama (Blue).
Naughty Dog (Red) and Insomniac Games (Blue).
Works of Shonen Jump:
One Piece (Red) vs. Naruto (Blue).
Works of Yoshihiro Togashi:
YuYu Hakusho (Red) and Hunter × Hunter (Blue).
My Hero Academia (Red) vs. Demon Slayer (Blue).
Hip-Hop (Red) and R&B (Blue).
Works of Shinichiro Watanabe:
Samurai Champloo, Terror in Resonance and Space Dandy (Red) vs. Cowboy Bebop, Kids on the Slope and Carole & Tuesday (Blue)
Works of J. R. R. Tolkien:
The Hobbit (Red) and The Lord of the Rings (Blue).
Rock music (Red) and Electronic music (Blue).
Rock music subgenres: Hard Rock (Red) and Progressive Rock (Blue). For bonus points, both came from Psychedelic Rock stylistic origins.
Studio Killers (Red) and Gorillaz (Blue).
Series-wide example: SMG4 (Red) and SuperMarioLogan (Blue).
McDonald's Restaurant (Red) vs. The Burger King (Blue).
To put it one way, McDonald's can be looked as a Red Oni restaurant, and The Burger King is a Blue Oni restaurant.
Series-wide example: Outlaw Star (Red) and Cowboy Bebop (Blue).
Series-wide example: Little Witch Academia (Red) and The Worst Witch and The Owl House (Blue).
Series-wide example: BNA: Brand New Animal (Red) and Beastars (Blue).
Max (Red) and Netflix and Disney+ (Blue).
Multiplayer-only games:
Overwatch (Red) and Team Fortress and League of Legends (Blue).
Web entertainments:
Rooster Teeth (Red) and Newgrounds (Blue).
Rooster Teeth series example: Red vs. Blue, RWBY, Immersion, Camp Camp and gen:LOCK(Red) and Newgrounds series example: Pico, The Clock Crew, Madness Combat, There she is!! and Salad Fingers' (Blue).
Rooster Teeth cartoons:
Camp Camp (Red) and Nomad of Nowhere (Blue).
DEATH BATTLE! series:
The Original Show (Red) and 1 Minute Melee (Blue).
The Original Show (Red) and its spin-off shows are DBX and Death Race (Blue).
Star Wars:
Theprequeltrilogy (Red) and Theoriginaltrilogy (Blue).
Fullmetal Alchemist:
The Manga / Brotherhood (Red) and the 2003 anime (Blue).
Fall Guys: Ultimate Knockout (Red) vs. Among Us (Blue).
Series-wide example: Alien (Red) vs. Predator (Blue).
Series-wide example: A Nightmare on Elm Street (Red) vs. Friday the 13th (Blue).
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