Fighter number

Fighter numbers are a method of identifying and sorting characters in Super Smash Bros. Ultimate.
==Definition==
As explained by Masahiro Sakurai, the numbers order characters based on "the order in which they joined the series". They are ordered in the following way:
*SSB (01-12): The starter characters are ordered by their placement on the character selection screen, which in turn is based on each character's first appearance (with and as the oldest and as the newest). The unlockable characters are similar, though they are sorted column-first rather than row-first as the starters are; as such, precedes despite being created later. This also matches their series debut order, explaining why Ness comes before Captain Falcon.
*Melee (13-26): The starter characters are ordered by their first appearance on Melees E3 2001 reveal trailer (based on which ones had their faces shown first, meaning that the and come before , whose hand appeared earlier in the trailer). Zelda was the only character on Melees starting roster who wasn’t revealed to be playable at E3 2001, which could also be the reason why Zelda is placed after Sheik, despite both Melee and Brawl treating her as the primary character and Sheik as an alternate form. The unlockable characters are ordered by how many Vs. Mode matches are required to unlock them, and thus , , , and 's roles in the reveal trailer are ignored.
*Brawl (27-44): The characters first revealed in Brawls original trailer are first (in the order they were revealed), followed by the remaining newcomers in the order revealed on the official website. Notably, is not given a fighter number; instead, their three Pokémon (, , and ) are numbered, ordered by their cycling order.
*SSB4 (45-63) and Ultimate (64-82): The characters are ordered by when each newcomer was revealed. and are given separate numbers.
*Echo Fighters share their number with their "parent" in addition to an apostrophe (') stylistically referred to as "dash" in Japanese and Chinese or a superscript epsilon (ε) in other languages, regardless of which game they joined in. For example, 's fighter number is 04, while 's fighter number is 04ε, despite Dark Samus making her playable debut in Ultimate.
==Usage==
The fighter numbers are used to order characters on Ultimates character selection screen and promotional material. The Mii Fighters are the only fighters whose placement on the selection screen does not correspond with their numbers, as they are instead always shown as the last characters on the selection screen, even after DLC characters, likely due to their customizable nature. The only major in-game usage of the fighter numbers is that Echo Fighters, due to not having their own fighter number, can be optionally stacked onto the character they are based on in the character selection screens for Vs. Mode, Special Smash (except for Smashdown), Tourney, and Online modes (except for Quickplay). The only place that the fighter numbers are explicitly shown in-game is on the Move List.
A similar system is used for ordering stages on Ultimates selection screen, where all stages are ordered by when they first appeared in the series. The only exceptions are stages not based on any franchise (, , , and Small Battlefield), which are all placed first on the selection screen even if they debuted in later games. Another quirk involves stages which debuted in and are shared between both versions of Super Smash Bros. 4, which are mixed in with stages that debuted exclusively in ).
==Order==
Fighter Number	Fighter
01 	
02 	
03 	
04 	
04ε 	
05 	
06 	
07 	
08 	
09 	
10 	
11 	
12 	
13 	
13ε 	
14 	
15 	
16 	
17 	
18 	
19 	
20 	
21 	
21ε 	
22 	
23 	
24 	
25 	
25ε 	
26 	
27 	
28 	
28ε 	
29 	
30 	
31 	
32 	
33 	()
34 	()
35 	()
36 	
37 	
38 	
39 	
40 	
41 	
42 	
43 	
44 	
45 	
46 	
47 	
48 	
49 	
50 	
51 	
52 	
53 	
54 	
55 	
56 	
57 	
58 	
59 	
60 	
60ε 	
61 	
62 	
63 	
64 	
65 	
66 	
66ε 	
67 	
68 	
69 	
70 	
71 	
72 	
73 	
74 	
75 	
76 	
77 	
78 	
79 	
80 	
81 	
82 	
==Trivia==
*Coincidentally, and have the same fighter numbers as their respective costume numbers in .
*Had Echo Fighters been numbered normally (i.e. not grouped with their base fighters), they could be placed accordingly:
** would have been either between and or between and Although he was officially revealed after the launch of , his status as a playable character was teased directly after the reveal of Palutena.
** would have been between Pac-Man and .
** would have been between Inkling and .
**'s position would have been unchanged, as he was revealed directly after his base fighter and before Chrom, making him the only Echo Fighter with this trait.
** and would have been between Richter and , with Dark Samus listed after Chrom.
** would have been between and .
**If Echo Fighters had been numbered normally, the final number would have been 89 instead of 82.
*Oddly, on the back of the North American physical case of Ultimate, several fighters are misplaced from their fighter number order:
** is between and , rather than between and .
** is between and , rather than between and .
** is between and , rather than between and Chrom.
** is between and , rather than between and Pokémon Trainer.
** is between Ken and , rather than between and .
**Palutena is between Ridley and , rather than between the s and Pac-Man.
** is between Corrin and Simon, rather than between Ken and Corrin.
*Although fighter numbers debuted in Ultimate, previous games had used similar systems for organizing its fighters. 
**Brawls Character Roll Call places whomever the player picked first, but the remaining characters are separated by whether they debuted in 64, Melee, or Brawl, ordered from starters to unlockables (with the only exception being Ike, who is placed between Lucario and R.O.B. rather than between King Dedede and Lucario), followed by last-minute additions (Jigglypuff, Toon Link, and Wolf), and third-party characters (Snake and Sonic). Brawls character selection screen in both Subspace Emissary and orders their characters the exact same way, though characters who are transformations (Samus/Zero Suit Samus , Zelda/Sheik, and Squirtle/Ivysaur/Charizard for Pokémon Trainer) all share a single slot.
**The Super Smash Bros. 4 Official Site orders the starter characters almost identically to their fighter numbers. The only exceptions are that Zelda is ordered before Sheik in SSB4, the third-party characters and Miis are ordered after everyone else, and on the website Lucina (the only unlockable character who was revealed before launch) is ordered after Robin despite being revealed first.
**The character lineup that replaces the opening movie in orders starting characters in the same way as the website. The lineup in for 3DS similarly orders the unlockable characters by their debuts, though with before and the three clones (including Lucina) ordered after the other unlockables.
*Although the amount of fighter numbers and the amount of playable characters differ due to Echo Fighters not counting for fighter numbers and transformation characters counting for multiple, competitively speaking the amount of characters counted on the tier list is identical to fighter numbers, despite the different criteria. Lucina, Chrom, and Ken are counted as separate characters due to their significant differences, adding three, while counting Pokémon Trainer and Pyra/Mythra as one slot each subtracts the three from Lucina, Chrom, and Ken.
**Additionally, by sheer coincidence, Rosalina & Luma's fighter number and tier list position in the first Ultimate tier list are the same number.