...Like half of this is guesswork, but it's what I'm going on until I figure out better.
--> Defeat the BK. Gamzee stoned out of his mind and doesn't actually remember this
--> Bec Noir's attack/flee into the Veil. Only remaining sopor is what's in his sylladex.
--> Alterniabound?
--> Last sopor pie
--> Gamzee starts crashing hard. First (from his POV) trolling of Dave and the ICP video. He absconds from the computer lab.
--> Karkat starts wondering where the fuck he's gone to
--> Tavros killed. Terezi's "investigation" Meanwhile, Eridan murders Feferi and Kanaya (these all happen around the 3:14-2:42 timeframe--Gamzee is present for Terezi's investigation, which starts at 2:42)
--> Gamzee contacts Karkat. Karkat opens memo; future Gamzee trolls him. Present Gamzee might well be watching Terezi, Future Gamzee doesn't seem to have killed anyone yet or is just like a few seconds after he killed Equius and Nepeta.
--> Karkat and Terezi talk. Karkat asks Equius to go after Gamzee
--> Gamzee messes with Tavros's body and starts painting. Second (from his POV) trolling of Dave, and reveal of the universe sabotage.
--> Terezi heads to computer lab.
--> ?? Gamzee trolls Karkat's memo about him?
--> Gamzee murders Equius and Nepeta. Heads to roof.
--> Kanaya kicks him off of it and chainsaws Eridan. Meanwhile, Terezi finds Equius's and Nepeta's bodies.
--> Gamzee messes with her head for a while, and gets her to go to the roof.
--> Vriska's and Terezi's showdown: Gamzee watching from the shadows (seems to have happened very shortly before Cascade?)
--> ?? Doc scratch Convo with Vriska's comp while they're distracted
--> Showdown and shoosh paps
--> Cascade (or the end of the universe as they know it)
Canon confirmed he's over to alternating lines permanently, but keeping this here for my own reference.
Since his quirk is so very unstable, it can be used to determine his moods to some extent. Probably the only person he'll readily admit anything to is Karkat so this is the only way.
Note on the alt caps sorting: Gamzee's logs use two different methods to sort out the alt caps and where they fall. The first doesn't count punctuation and spaces while the second does and the changeover happens about halfway through but irrespective of where his logs are falling on the timeline, so in respect to caps sorting it isn't an IC change (like the switch to alternating lines is). That...second method doesn't feel organic and natural, honestly, and since the first method is also canon, I will use that exclusively. Personal aesthetic preference? You bet, but I find the later logs less pleasing to look at, and Gamzee has probably the most annoying quirk so!
On the other hand... Punctuation or the lack of it, however, seems more reasonable as something that would change ICly so those changes have been incorporated.
AlTeRnAtInG cApS
aLtErNaTiNg CaPs
AlTeRnAtInG cApS
aLtErNaTiNg CaPs
AlTeRnAtInG cApS
Punctuation: normal and correct
A) He's high as fuck.
B) (more likely) Feeling relatively good, calm and happy.
C) Feeling like shit but consciously trying not to worry people too much. Small slip-ups in the first letter alternating are the clues to differentiate between B and C.
AlTeRnAtInG cApS
AlTeRnAtInG cApS
AlTeRnAtInG cApS
AlTeRnAtInG cApS
AlTeRnAtInG cApS
Punctuation: incomplete, incorrect, or missing entirely
A) Crashing from being high as fuck.
B) (more likely) Distracted and/or feeling ill but calm.
AlTeRnAtInG cApS
AlTeRnAtInG cApS
aLtErNaTiNg CaPs
all the lowercase
AlTeRnAtInG cApS
Punctuation: varies in amount and appropriateness
Distressed more towards depression, listlessness and fear and/or in pain. (Usually coupled with mess-ups in first letter alternating too.)
aLtErNaTiNg CaPs
AlTeRnAtInG cApS
ALL THE CAPS
AlTeRnAtInG cApS
aLtErNaTiNg CaPs
Punctuation: varies in amount and appropriateness
Distressed more towards anger, restlessness and violence. (Usually coupled with mess-ups in first letter alternating too.)
The more often ALL THE CAPS and all the lowercase that appear in his lines, the more distressed he is. As long as it's not more than three lines in a row, however, he hasn't started to lose his shit. So:
AlTeRnAtInG cApS
all the lowercase
ALL THE CAPS
all the lowercase
ALL THE CAPS
AlTeRnAtInG cApS
Punctuation: varies in amount and appropriateness
Starting to lose his shit. Take warning!
ALL THE CAPS
all the lowercase
ALL THE CAPS
all the lowercase
ALL THE CAPS
Punctuation at the end of each line even when it shouldn't be/is incorrect
Shit lost. Head for the fucking hills and/or get Karkat in there.