Nicktoons Unite Again

Nicktoons Unite Again is the fourth sequel to Nicktoons Unite. Like the original, it uses a team of up to four characters from Nickelodeon toons.

Plot
Spongebob and his many friends realize that a new villain by the name of Ri-Ot the Free-er who freed all the villains from their respective worlds.

Playable Characters

 * Spongebob Squarepants
 * Patrick Star
 * Danny Phantom
 * Timmy Turner
 * Jimmy Neutron
 * Cindy Vortex
 * Invader Zim
 * Tak
 * Ren Hoek
 * Rocko
 * Jenny Wakeman/XJ9
 * Doug
 * Tommy Pickles
 * Bessie Higgenbottom
 * Eliza Thornberry
 * CatDog
 * Avatar Aang
 * Avatar Wan
 * Avatar Korra
 * Leonardo
 * Raphael
 * Michaelangelo
 * Donatello

Unlockable Characters

 * Mermaid Man & Barnacle Boy (Bikini Bottom)
 * Sandy Cheeks (Rock Bottom)
 * Mr. Krabs (Chum Bucket)
 * Tucker Foley (Amity Park)
 * Undergrowth (Danny's House)
 * Vlad Masters (Ghost World)
 * Cosmo and Wanda (Dimmsdale)
 * Vicky (Fairy World)
 * Mr. Crocker (Chincinnati)
 * Carl Wheezer (Retroville)
 * Goddard (Jimmy's Lab)
 * Ooblar (Yolkus)
 * Ultra-Lord (NegaRetroville)
 * The Herminator (Negatron's Lab)
 * GIR (Dark City)
 * Gaz (Zim's House)
 * Almighty Tallest (Hobo 13)
 * Lok (Pupanunu Village)
 * Jibolba (Juju World)
 * Flora (Dream World)
 * Stimpy (Ren's House)
 * Fire Chief (Streetway)
 * George (Stimpy's House)
 * Heffer Wolffe (Conglom-O)
 * Ed Bighead (Chewy Chicken)
 * Bev Bighead (Welcome to Heck)
 * Nora Wakeman (Tremorton)
 * Brad Carbunkle (Jenny's House)
 * Smytus (Cluster Prime)
 * Spike (Life With The Rugrats)
 * Phil & Lil (Lava Java)
 * Chuckie Finster (Reptar's World)
 * Happy Higgenbottom (San Francisco)
 * Ben Higgenbottom (Bessie's Apartment)
 * Gwen (The Dragonflies)
 * Darwin (African Jungle)
 * Donnie (The Savannah)
 * Nigel Thornberry (Rocky Mountain)
 * Amon (The Land of Raava)
 * Azula (The Fire Nation)
 * Aye-Aye (The Spirit World)
 * Splinter (New York Sewers)
 * Bebop & Rocksteady (New York City)
 * Shredder (Dimension X)

Heroes Pack

 * Squidward Tentacles
 * Sam Manson
 * Crimson Chin
 * Sheen Estevez
 * Dib
 * Party Juju
 * Powdered Toast Man
 * Really Really Big Man
 * Sheldon Lee/Silver Shell
 * Reptar
 * The Mighty B
 * Marianne Thornberry
 * Raava
 * Casey Jones

Villains Pack

 * Plankton
 * Nicolai Technus
 * Gilded Arches
 * King Goobot
 * Tak the Irken
 * Tlaloc
 * Mr. Horse
 * Peaches
 * Vexus
 * Angelica Pickles
 * Portia
 * Siri the Leopard
 * Vaatu
 * Lord Dregg

Bosses

 * Man-Ray & Dirty Bubble
 * Evil Danny
 * Body of Evil & Nega-Chin
 * Goobot & Poultra
 * Jimmy Negatron & The Herminator
 * Hobo 678
 * Tlaloc & Dream Guardian
 * Mr. Horse
 * Giant Peaches
 * Vexus, Armagedroid & Killgore
 * Reptar
 * The Dragonflies
 * Siri the Leopard
 * Vaatu
 * Shredder and Krang
 * Ri-Ot
 * Me-Ga Ri-Ot

Levels

 * 1) Training
 * 2) Bikini Bottom
 * 3) Rock Bottom
 * 4) Chum Bucket
 * 5) Amity Park
 * 6) Danny's House
 * 7) Ghost World
 * 8) Dimmsdale
 * 9) Fairy World
 * 10) Chincinnati
 * 11) Retroville
 * 12) Jimmy's Lab
 * 13) Yolkus
 * 14) NegaRetroville
 * 15) Negatron's Lab
 * 16) Dark City
 * 17) Zim's House
 * 18) Hobo 13
 * 19) Pupanunu Village
 * 20) Juju World
 * 21) Dream World
 * 22) Ren's House
 * 23) Streetway
 * 24) Stimpy's House
 * 25) Conglom-O
 * 26) Chewy Chicken
 * 27) Welcome to Heck
 * 28) Tremorton
 * 29) Jenny's House
 * 30) Cluster Prime
 * 31) Life With The Rugrats
 * 32) Java Lava
 * 33) Reptar's World
 * 34) San Francisco
 * 35) Bessie's Apartment
 * 36) The Dragonflies' Nest
 * 37) African Jungle
 * 38) The Savannah
 * 39) Rocky Mountain
 * 40) Land of Raava
 * 41) The Fire Nation
 * 42) The Spirit World
 * 43) New York Sewers
 * 44) New York City
 * 45) Dimension X
 * 46) The Final Battle
 * 47) The REAL Final Battle

Rating
Rated E10 for cartoon violence.

Voice Cast

 * Tom Kenny as Spongebob, Heffer Wolffe
 * David Kaufman as Danny Phantom
 * Tara Strong as Timmy Turner, Poof, Killgore
 * Debi Derryberry as Jimmy Neutron, Jimmy Negatron
 * Amy Poehler as Bessie Higgenbottom, The Mighty B
 * Billy West as Doug, Ren, Stimpy, Mr. Horse, George, Powdered Toast Man, Ooblar
 * Lacey Chabert as Eliza Thornberry
 * Grey DeLisle as Vicky, Siri, Sam Manson, Portia
 * Patrick Stewart as King Goobot
 * Flea as Donnie