User blog comment:Monkey.D.Me/Let Tango!/@comment-3075024-20130308061039/@comment-5601098-20130308065532

Die Momo!

Anyways,Dressrosa is the Island of birds or something like that (I don't remember very well) so people there can fly (at least some of them).

My theory:

Doflamingo gives strings to his crewmates and they have the ability to fly.He did the same to Momo.