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
 * Little Suzy
 * Ed, Edd and Eddy
 * Courage
 * Samurai Jack
 * The Grim Reaper
 * Billy and Mandy
 * Ben Tennyson
 * Gwen Tennyson
 * Vilgax
 * Finn and Jake
 * Princess Bonnibel "Bonnie" Bubblegum
 * Marceline Abadeer
 * Simon Petrikov/The Ice King
 * Mordecai and Rigby
 * Muscle Man and Hi-Five Ghost
 * Anti-Pops
 * Gumball and Darwin Watterson
 * Steven Universe
 * Garnet
 * Amethyst
 * Pearl
 * Jasper
 * Bigfoot, Alien, Nessie, Mothman and Chupacabra
 * Dr. Turbo
 * Frank, Emma and Tyler Woodson
 * Dr. Mad Stitches
 * Eric McEdderson and Claire the Ghost
 * K.O.
 * Enid and Radicles

Playable characters

 * Bugs Bunny
 * Daffy Duck
 * Porky Pig
 * Lola Bunny
 * Marvin the Martian
 * Buster and Babs Bunny
 * [just Plucky or Hamton too]
 * Elmyra Duff
 * Yakko, Wakko and Dot Warner
 * Pinky and the Brain
 * Scooby-Doo
 * Shaggy Rogers
 * Fred Jones
 * Daphne Blake
 * Velma Dinkley
 * Collin Brady/Collin the Speedy Boy
 * Cooper and Tommy
 * Bryte
 * Kitrina and Terry
 * Gayle
 * Lilia
 * Charlotte Painex and Tux
 * Maria Jaxon
 * The Iron Emperor
 * Jeffrey Morrison/Howler
 * Bella Stoker
 * George and Georgia
 * The Naga
 * Ashton Paintders
 * Shoney Paintders
 * Unikitty
 * Puppycorn
 * Master Frown

Playable characters

 * SpongeBob SquarePants
 * Patrick Star
 * Sandy Cheeks
 * Sheldon Plankton and Karen
 * Timmy Turner
 * Cosmo and Wanda
 * Vicky
 * Jimmy Neutron
 * Carl Wheezer
 * Sheen Estevez
 * Professor Calamitous
 * Danny Phantom
 * Sam and Tucker
 * Vlad Plasimus
 * Velocity
 * Shunky
 * Brimstone
 * Zim
 * GIR
 * Dib
 * Aang
 * Katara
 * Azula
 * Gatopardos
 * Skylos and Gata
 * Sfika
 * Lincoln Loud
 * Lucy Loud
 * Lisa Loud
 * Leonardo, Donatello, Raphael and Michaelangelo
 * April O'Neil
 * The Shredder
 * Flytrap
 * Kevin
 * Spinolord
 * Riley Killian
 * Pain the Bat
 * Cuddly Monster
 * Harvey Beaks
 * Bunsen
 * Agent Xero
 * Mole
 * Baron Vain
 * Amanda Payne

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