This is where it gets embarrassing, I can't be quite such a big fan as I thought, as I don't have the answers at my fingertips. The fourth one (about being over the hill) is easy, it's Tiger addressing Zelda in A Christmas Miracle. "I must have been snoring" is definitely Zero, in one of the earliest episodes. Is "Use your powers" Yung-Star addressing Yuri, in First Strike or Terratomb? Or it could be one of the androids talking to Lord Tempo, in Timewarp? "RETREEEEEEATTTTT" is said most memorably by Commander Makara in Starfleet! But I think in this case, it's Zelda; in Expect the Unexpected?Here's one I like: "Flaming thunderbolts!" "I couldn't have put it better myself."