In the first season, I saw Haku doing ninjutsus w/ only one hand! I've seen 125 episodes of the series so far and I have YET to see anyone else do ninjutsus w/ only one hand! Everyone else, the Jounin, the Sanin, Orochimaru's fighters, even the 3rd Hokage had to do jitsus w/ BOTH hands!!! So, the first question is, is there ANYONE else that can do that (jitsus w/ one hand)? And the second question is if not, how can Haku do those jitsus w/ one hand?