Whatever Pudding told Luffy he really didn't like at all. Zeff maybe? Pudding is going to leave? Neither of those really strike me as making Luffy that mad (well Zeff maybe but in the context of the scene I doubt she informed him of that).
Walking on air was one of the technological advances first shown by the Germa in the story. The idea I think with them is they do with technology what Sanji has taught himself to do naturally. I fully expect one of the brothers to light their leg on fire using some tech before this arc is over.
Originally Posted by uber gon
To right the countless wrongs of our day, we shine this light of true redemption, that this place may become as paradise. What a wonderful world such would be...