Reminder this is the single best episode of all shounen
That's not 116.
Not particularly. I don't think he ever mentioned a desire to kill Pitou until after she told him that Kite was long gone and she had to kill Gon for the king's sake. What he did afterwards was deliver judgement to himself as penance for believing he got Kite killed and to Pitou for being a "liar" and murdering Kite. Chapters 305 and 306 express this clearly.
Reverse super saiyan was pretty sweet.
I preferred the episode where it's just Gon, Killua, dying Kumogi, and Neferpitou.