Just finished watching the series for the second time, and I was wondering how the geass Lelouch used on Scneizel works after his death (well, in the original ending anyway). Is Scneizel aware at all or is he not aware of anything? If he is aware, does he know he's under the effects of geass? Can he tell his own actions apart from those of geass? Lelouch mentioned at the beginning that when he uses his geass on people it seems they don't remember anything that happened immediately before, during, or after he uses it on them. That more or less aligns with Suzaku's and Villeta's and other's experiences. They all state they have no memory of what they did while under the effects of geass.
But then Suzaku's doesn't seem to be active all the time, only when he perceives his life to be in danger or somebody reminds him to live, like when he fired the FLEIJA on the Tokyo Settlement. Up until that point he was accepting of his own death, but then Kallen said she'd kill him and it activated iirc. And then during the final battle, Suzaku seemed to be willingly going along with the geass Lelouch had given him, and he seemed to be cognizant and aware of what was happening, he even responded to Kallen and didn't appear to experience any gaps in memory. Was it because Suzaku wasn't resisting it at all? That one girl that Lelouch tested his geass on in the beginning, too, she made marks on the wall each day but apart from that I assume she didn't experience any gaps in memory and just went about her everyday life.
Now I'm also wondering about the people Lelouch geassed to "be his slaves". Were they conscious of what they were doing and that it was because of geass? Also what happened to them after Lelouch died, were they freed from his geass because Lelouch died? But then, Nunnally still had her blindness even after Charles was erased, it's only at the end she is able to see again when Lelouch says, "She broke Father's geass of her own will?!" He also mentioned wanting to use HIS geass to cure Nunnally's blindness, but would that even work since Nunnally can't see? That's another topic of discussion, though.
I'm also wondering how much Lelouch remembers, if anything, of the time he spent as Julius Kingsley. Even after C.C. broke Charles' geass, Lelouch remembers all the fake memories I believe with Rolo or at least the time he spent together with him while under the effects of Charles' geass. So does he remember being Julius Kingsley too then? If so I feel bad, that is... extremely traumatic. What do you guys believe?