Cartoon Nickelodeon Fight Up!

 is a fighting game featuring Cartoon Nickelodeon Network characters.

Gameplay
W.I.P.

Classic

 * The Powerpuff Girls (1998)
 * Dexter's Laboratory
 * Johnny Bravo
 * Ed, Edd n Eddy
 * Courage the Cowardly Dog
 * Samurai Jack
 * The Grim Adventures of Billy and Mandy
 * Ben 10

Modern

 * Adventure Time
 * Regular Show
 * The Amazing World of Gumball
 * Steven Universe
 * The Cryptids
 * The Mysterious Mysteries of Mystery Manor
 * Eric and Claire
 * OK K.O.! Let's Be Heroes

Warner Bros. Animation

 * Looney Tunes/Tiny Toon Adventures/Animaniacs
 * Scooby-Doo
 * Collin the Speedy Boy
 * The Dinosaur Princess
 * Good Ol' Magic
 * Howler
 * The Tales of the Paintders
 * Unikitty! (under license from The Lego Group)

Classic

 * SpongeBob SquarePants
 * The Fairly OddParents
 * The Adventures of Jimmy Neutron: Boy Genius
 * Danny Phantom
 * Velocity: The Dark Human Slayer
 * Invader Zim
 * Avatar: The Last Airbender
 * Gatopardos the Cheetah

Modern

 * The Loud House
 * Teenage Mutant Ninja Turtles
 * Flytrap: Savior of All
 * The Miserable Adventures of Riley
 * Harvey Beaks
 * Bunsen is a Beast
 * The Modifyers
 * Constant Payne

Playable characters

 * Blossom, Bubbles and Buttercup Utonium
 * Mojo Jojo
 * Him
 * Dexter
 * Dee Dee
 * Mandark
 * Johnny Bravo
 * Ed, Edd and Eddy
 * Courage
 * Samurai Jack
 * The Grim Reaper
 * Billy and Mandy
 * Ben Tennyson
 * [Gwen and Kevin appearing?]
 * [Vilgax, Hex, Charmcaster, Dr. Animo or TBD]
 * Finn and Jake
 * [Bonnie, Marceline or both]
 * [Ice King, Lich, Lemongrab or TBD]
 * Mordecai and Rigby
 * Gumball and Darwin Watterson
 * Steven Universe
 * Bigfoot, Alien, Nessie, Mothman and Chupacabra
 * Frank, Emma and Tyler Woodson
 * Eric McEdderson and Claire the Ghost
 * K.O.

Playable characters

 * Bugs Bunny
 * Daffy Duck
 * Porky Pig
 * Lola Bunny
 * Marvin the Martian

Playable characters

 * SpongeBob SquarePants
 * Patrick Star
 * Sandy Cheeks
 * Sheldon Plankton and Karen

Voice cast

 * Cathy Cavadini as Blossom Utonium
 * Tara Strong as Bubbles Utonium
 * Elizabeth Daily as Buttercup Utonium
 * Roger L. Jackson as Mojo Jojo
 * Jeff Bergman as Bugs Bunny and Daffy Duck
 * Bob Bergen as Porky Pig
 * Eric Bauza as Marvin the Martian
 * Tom Kenny as SpongeBob SquarePants
 * Bill Fagerbakke as Patrick Star
 * Mr. Lawrence as Sheldon Plankton
 * Bill Fagerbakke as Patrick Star
 * Mr. Lawrence as Sheldon Plankton