The opening scene of "Day Of The Flowers" from She-Ra's season two feels like a mini episode. What is interesting is that the scene reuses action-based animation from three previous season one She-Ra episodes. The opening shot and subsequent direction is based on animation from "Into Etheria", the scene where She-Ra and He-Man destroy the guard tower uses animation from "The Price of Freedom", and finally Bow and Glimmer drive a Horde transport vehicle away using animation from "The Peril of Whispering Woods". I have to say this is some of the best reuse of previous animation, combining three episodes to create one super action scene!
Download the video clip!