3 shorts and 3 music videos. Firstly, the music videos feature clips from throughout the main show. Music is alright for what it is. Nothing to write home about. They're only short, and it didn't hurt. The 3 shorts were okay. Artwork was less refined than in main show (where I didn't it was particularly wonderful either) but overall, all 3 are sweet little bits of filler. I didn't rate them very high as they were a bit too short and the artwork . They all sufficed as extras though. First episode does include something that appears in the mainshow

All 6 take just under 13 minutes. You may as well watch them if you watched the main show.