This stupid joke took a full day to make...
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1-Freddy Fazbear
2-Bonnie
3-Chica
4-Foxy
5-Endo 01
6-Toy Freddy
7-Toy Bonnie
8-Toy Chica
9-Mangle
10-BB & JJ
11-The Puppet
12-Withered Freddy
13-Withered Bonnie
14-Withered Chica
15-Withered Foxy
16-Golden Freddy
17-Endo 02
18-RWQFSFASXC
19-Springtrap
20-Nightmare Freddy
21-Nightmare Bonnie
22-Nightmare Chica
23-Nightmare Foxy
24-Nightmare Fredbear
25-Plushtrap
26-Circus Baby
27-Ballora
28-Funtime Freddy
29-Funtime Foxy
30-Ennard
31-Lolbit
32-Yenndo
33-Rockstar Freddy
34-Rockstar Bonnie
35-Rockstar Chica
36-Rockstar Foxy
37-Lefty
38-Scrap Baby
39-Scraptrap
40-Molten Freddy
41-Orville Elephant
42-Happy Frog
43-Mr. Hippo
44-Pigpatch
45-Nedd Bear
46-Music Man
47-Funtime Chica
48-El Chip
49-Glitchtrap
50-Dreadbear
51-Grim Foxy
52-Freddy Frostbear
53-8-Bit Baby
54-Space Freddy
55-LOLZHAX
56-Animdude
57-Adventure Fredbear
58-The Stitchwraith
59-Adventure Lolbit
60-Dee Dee
61-Twisted Wolf
62-Pit Spring Bonnie
63-Fetch
64-Simulator Freddy
65-Blacklight Freddy
66-Candy
67-Monochrome Freddy
68-Fredbear Plush
69-Chica's Magic Rainbow
70-Mr. Chipper
71-Totem Panic
72-Lawyer Helpy
73-Stuffed Mike
74-Loading Custom Freddy
75-Fredbear

Some possible Echo Fighters:
Yellowbear (Freddy Fazbear)
Phantom Chica (Chica)
Phantom Mangle (Mangle)
Phantom Puppet (Pupept)
Unfinished Virtual Withered Foxy (Withered Foxy)
Phantom Freddy (Withered Freddy)
Phantom Foxy (Withered Foxy)
Shadow Freddy (Golden Freddy)
Minigame Shadow Bonnie (RWQFSFASXC)
Jack O's (Nightmare Bonnie & Nightmare Chica)
Nightmare (Nightmare Fredbear)
Nightmare BB (Plushtrap)
Counting Freddy (Funtime Freddy)
Action Figure Lolbit (Funtime Foxy)
Cereal Blacklight Freddy (Rockstar Freddy)
Ejected Baby (Molten Freddy)
Vanny (Glitchtrap)
Black Ice Frostbear (Freddy Frostbear)
Space Foxy (Space Freddy)
Security (Animdude)
Mendo (Adventure Lolbit)
Corrupted Simulator Freddy (Simulator Freddy)
Cindy (Candy)
Tyke (Mr. Chipper)

https://www.deviantart.com/toxiingames/art/FNaF-Smash-Selection-Screen-864524158