So SpongeBob SquarePants storyboard artist Kurt Snyder drew an ad for a Nickelodeon Smash tournament which depicts multiple Nicktoon characters as Smash characters. A few months later, Nickelodeon Animation's Twitter account posted the updated version of the poster with many new additions. Below is a list of who each character references.
| Reference | Character | Series |
|---|---|---|
| Master Hand | Hans | SpongeBob SquarePants |
| Crazy Hand | The Chum Bucket glove | SpongeBob SquarePants |
| Ken | Korra | The Legend of Korra |
| Palutena | Shine | Shimmer & Shine |
| Meta Knight | Anti-Cosmo | The Fairly OddParents |
| Lucario | Bunsen Monster | Bunsen Is a Beast |
| Dark Samus | Henry | KaBlam! |
| Samus | June | KaBlam! |
| Pac-Man | Gerald Johanssen | Hey Arnold! |
| R.O.B. | Karen | SpongeBob SquarePants |
| Mr. Game & Watch | Snap | ChalkZone |
| Donkey Kong | Stimpson J. Cat (Stimpy) | Ren and Stimpy |
| Villager | Dora | Dora the Explorer |
| Daisy | Susie Carmichael | Rugrats |
| King K. Rool | Bubble Bass (with Kevin's crown) | SpongeBob SquarePants |
| Bayonetta | The Gromble | Aaahh!!! Real Monsters |
| Zelda | Helga Pataki | Hey Arnold! |
| Peach | Angelica Pickles | Rugrats |
| Turnip | Angelica’s doll Cynthia | Rugrats |
| Red Pikmin | Gir | Invader Zim |
| Olimar | Zim | Invader Zim |
| Ness | Tommy Pickles | Rugrats |
| Pikachu or Pichu | Sheldon J. Plankton | SpongeBob SquarePants |
| Ganondorf | Roger Klotz | Doug |
| Luigi | Danny Fenton/Danny Phantom | Danny Phantom |
| Kirby | Patrick Star | SpongeBob SquarePants |
| Ice Climbers | Cat (Nana) and Dog (Popo) | CatDog |
| Jigglypuff | Wanda | The Fairly OddParents |
| Mario | SpongeBob SquarePants | SpongeBob SquarePants |
| Lucas | Jimmy Neutron | The Adventures of Jimmy Neutron: Boy Genius |
| Rope Snake | Carl Wheezer | The Adventures of Jimmy Neutron: Boy Genius |
| Young Link | Ronnie Anne Santiago | The Loud House/The Casagrandes |
| Snake | Craig Slithers | Sanjay and Craig |
| Sonic | Norbert | The Angry Beavers |
| Link | Lincoln Loud | The Loud House |
| Cloud | Arnold Shortman | Hey Arnold! |
| Mii Brawler | Aang | Avatar: The Last Airbender |
| Diddy Kong | Darwin | The Wild Thornberrys |
| King Dedede | Heffer | Rocko's Modern Life |
| Bowser Jr. | Michaelangelo | Rise of the Teenage Mutant Ninja Turtles |
| Koopa Clown Car | Raphael | Rise of the Teenage Mutant Ninja Turtles |
| Mega Man | XJ-9/Jenny Wakeman | My Life As A Teenage Robot |
| Incineroar | Manny Rivera/El Tigre | El Tigre: The Adventures of Manny Rivera |
| Falco | Harvey | Harvey Beaks |
| Mewtwo | Ren Hoëk | Ren and Stimpy |
| Dark Pit | Phil DeVille | Rugrats |
| Fox | Rocko | Rocko's Modern Life |
| Lucina | Lucy Loud | The Loud House |
| Isabelle | Bessie Higgenbottom | The Mighty B! |
| Duck Hunt | Blue (dog) and Señor Tucán (duck) | Blue's Clues/Dora the Explorer |
| Pit | Lil DeVille | Rugrats |
| Bowser | Filbert | Rocko's Modern Life |
| Wario | Nigel Thornberry | The Wild Thornberrys |
| Piranha Plant | Ickis (leaves), Krumm (head), and Oblina (stalk) | Aaahh!!! Real Monsters |
Excluded characters
- Yoshi
- Captain Falcon
- Sheik
- Dr. Mario
- Marth
- Roy
- Chrom
- Zero Suit Samus
- Ike
- Pokémon Trainer
- Toon Link
- Wolf
- Wii Fit Trainer
- Rosalina & Luma
- Little Mac
- Greninja
- Mii Swordfighter
- Mii Gunner
- Robin
- Shulk
- Ryu
- Corrin
- Inkling
- Ridley
- Simon
- Richter
- All DLC fighters (sans Piranha Plant)
Trivia
- While the hands that appear in the picture are meant to represent Master Hand and Crazy Hand, both hands are right hands like Master Hand, rather than one of them being a left hand to match Crazy Hand.
- Weirdly enough, the Chum Bucket hand itself is a left hand.
- Hans and the Chum Bucket hand are doing Arnold and Gerald's handshake from Hey Arnold!.
- Some of the characters also make references to the show they originated from. For example, Gerald, while dressed up as Pac-Man, is holding up a strawberry, referencing the episode where he dressed up as one for a play.
- Much like how Diddy Kong's hat features the Nintendo logo on it, Darwin's hat features the "nick" logo on it.
- Similarly, much like how Mario's and Luigi's hats have a red "M" for "Mario" and a green "L" for "Luigi", SpongeBob's hat has the anchor seen on the Krusty Krab employee hats (albeit retaining its blue coloration instead of being changed to Mario's red), and Danny's has a green "D" for "Danny".
- Additionally, Lincoln's shield has the initials "LH" for The Loud House to mirror the Hylian Crest on Link's and Ronnie Anne's has the initials "CG" for The Casagrandes to mirror the Kokiri symbol on Young Link's.