As you may have noticed these are all short excerpts of some of Gobou-san's Yume Nikki animations over the years. Figured I should post a link to the official Youtube versions for them here, because why the hell not.

2010: https://www.youtube.com/watch?v=-vYafd-dm14
2011: https://www.youtube.com/watch?v=G28FTIhOQOQ
2012: https://www.youtube.com/watch?v=eiwuzhIOLIA
2013: https://www.youtube.com/watch?v=lpfn0lKJdqs
2014: https://www.youtube.com/watch?v=K5_LeV1e5Fo (DB-fied at post #2227199)
2015: https://www.youtube.com/watch?v=UNhphyF74sA
2016: https://www.youtube.com/watch?v=rZ-L9L7q4EU (DB-fied at post #3040524)
2017: https://www.youtube.com/watch?v=VyesXcoFOfA
2018: https://www.youtube.com/watch?v=sHuoauaZ2Hk
2019: https://www.youtube.com/watch?v=AY7Op990ejI
2020: https://www.youtube.com/watch?v=lwpMPykYHjg (DB-fied at post #4530478)
And the ULTIMATE DANCE SEQUENCE: https://www.youtube.com/watch?v=VneKjsUR1oM (DB-fied at post #3033048)

All of that makes 12 animations out of the 21 available on that account, I suggest giving them all a look if you have the time as they are all pretty good.