Assist characters are called to the stage when a player grabs the Summon Cube. Unlike Super Smash Bros., where many of them are from obscure/unpopular games that weren't able to merit a playable one, they are all characters from shows the playable ones are from.

These are as FollowsEdit

  • Johnny Bravo barges in on his motorcycle, hitting the opponent, and flexes his muscles. (This assist attack is only available on the 3DS version, since he's a playable character on XL).
  • Cheese (Foster's) wanders around the arena screaming at the top of his lungs knocking the opponent off when hit.
  • Coco (Foster's) lays eggs containing items the player can use to his or her advantage for a breif set of time.
  • Dee Dee (Dexter) dances around the arena, knocking the opponent off when hit.
  • Dracula (Billy and Mandy) starts a dance party, making the opponent dance thus distracting it.
  • Eduardo (Foster's) runs around the arena, knocking the opponent off when hit.
  • Fred Fredburger (Grim Adventures) run around the arena while swinging his frying pan thus hitting the opponent off the screen when it
  • Fuzzy Lumpkins (Powerpuff Girls) Shoots people with his meat gun turning them into meat
  • Gazpacho (Chowder) Throws pickles everywhere that heal You
  • General Skarr (Grim Adventures) Has his army of tanks come and try to KO you
  • Gwen Tennyson (Ben 10) Sheilds the character that summons her
  • Madame Foster (Foster's Home) Imaginary Friends chase her, damaging foes. Only on PTE XL.
  • Major Glory (Dexter) Freezes other characters and flies away.
  • Mandark (Dexter) Goes around shooting lasers
  • Mung Daal (Chowder) Falls and leaves food that can heal you
  • Number 2 (Code Name: Kids Next Door) Goes on a plane from the show flying across the screen twice
  • Number 4 (Code Name: Kids Next Door) Does a series of punches and kickes. Only on PTE XL.
  • Panini (Chowder) She latches on a random character that reverse there controls.
  • Schnitzel (Chowder) When hit he'll wobble in place and cause damage (like Wobbuffet From Smash Melee And Brawl)
  • Stickybeard ( Kids Next Door) He will get a giant cannon that will hurt anyone and fires a giant gumball.
  • Val Hallen (Dexter) He fires lightning his guitar everywhere
  • Vreedle Brothers (Ben 10) They fire their guns everywhere hurting everyone