I kind of wish we could've gotten some back story on Ghetsis. I mean come on, the guy went around Unova rounding up orphans (don't forget Anthea and Concordia) as part of a plot to take over the region. We never even got to hear what his motivation was for taking over Unova, aside from his "Pokemon Are Tools" excuse. At what point did he begin to discard his humanity and become a monster?
More missed opportunities for the sequels, I guess.