I was very upset when I came across Nagito's body. This was in part because I adore Nagito (and, much like Hajime, I'd sort of thought of him as immortal), but it was mostly because he'd been killed so brutally. I didn't want to believe any of the living characters would have done that. I was a little relieved when I realised he'd actually inflicted all those horrible wounds on himself.
(Nagito, you are so fucked up. I can't believe he taped his own mouth shut so nobody would hear him screaming.)
I think my favourite thing about the fifth case was the way sudden revelations kept hitting me when I took breaks from playing the game. Washing the dishes before the trial began - holy shit, did Nagito brutally murder himself? Watching television with my housemate mid-trial - holy shit, there was poison in the fire grenades!
(I actually gasped aloud. My housemate was confused.)
I was so excited when I realised there might have been poison in the fire grenades. I actually thought at first that all the grenades had contained poison. The survivors guess that Nagito died by suicide; they're wrong, so the killer gets to go free, but the killer is all the survivors.
I was a little sad when it transpired that Nagito hadn't hatched an ingenious plan to free everyone else by sacrificing himself. Although his plan was still fairly ingenious.
Although I was sorry to see him go, Nagito's murder is my personal favourite case in the entire Danganronpa series. There are so many great twists, and 'the culprit has no idea they're the culprit, because they were unknowingly manipulated into the murder by the victim' is such a fascinating central concept for a Danganronpa case.
Plus the CG of Nagito stabbing up his own legs is pretty hot. Don't look at me like that.