OptionProbability
It releases
A Dark World appears in Asgore's flower shop
FRIEND has an increased prominence in Chapter 5
Asgore isn’t the final boss of Chapter 5
Something was foreshadowed by the Undertale 10th Anniversary event
An sub-40-minute speedrun happens within a month of release
A battle against any Undertale character
Dess is confirmed to be the Roaring Knight
There are multiple new Dark Worlds
The Weird Route has a completely different final battle than the normal route
The official soundtrack has 40+ songs
Asriel appears
Flowey will be a darkner
A Weird Route exclusive battle against Kris, Susie, and/or Ralsei
Noelle replaces Kris as the player-controlled character at some point in the Weird Route
A plot important character dies
A battle with 4+ party members (with actual menus, nothing in CH4 would count)
Papyrus appears
Catti appears in a Dark World
Kris loses a hand
Jockington is confirmed to have some kind of connection to FRIEND/ IMAGEFRIEND
W.D. Gaster appears
Anyone other than Dess is confirmed to be the Roaring Knight
The weird route ends (as in, you can’t load a weird route save for chapter 6)
97
92
82
78
76
75
68
59
57
56
37
35
33
29
27
24
15
14
Kris
Susie
Ralsei
C. Holiday / The Mayor
Rudy Holiday
Noelle
Alvin Boom
Jockington
100
6
3
0
