When Donald casts magic, he'll say either "I got it!" or "Hah!" and when Donald supports himself, he'll say either "Okay!" or "Yeah!" However, here when casting magic, he said either "Hah!" or "Okay!" Other noticeable things: Past Pete made some weird sounds. Donald stayed in perfect health the whole fight. Goofy didn't say "Somebody come quick!" and "I've had it, fellers..." when falling into low health and being knocked out, respectively, just his receiving knock-back damage cry, "Oooowaaa!" I assume it would have been the same for Donald if he reached both those points in the video. At the end of Fantasia (Comet Rain), Donald says "Hah!" rather than "Take that!"