User blog comment:Stanley56/4-Year-Anniversary + Q&A/@comment-25147034-20171226122143/@comment-24338901-20171226135847

They are basically the extreme routines, even though I'm not such a big fan of them:

Despacito Extreme - I really wanted this song to get an alternate routine, because it has reggaeton influences, which make it danceable and the classic routine isn't satisfying enough. And the background with recycled elements may be better for me than an original one. The choreo has the dance style I expect the most when it comes to extreme routines out of the 4 extremes in this game.

John Wayne Extreme - It's basically a crazy routine and that's what I like about it along with some recycled moves from the music video. I find the "performance" look of the dancer as well.

24K Magic Extreme - It makes me think of Fina Chine (Extreme) I'm a fan of. Also, I like how shiny the dancer is, looking like some kind of a "boss". There are also numerous unrepetitive moves.

Tumbum Extreme - I endorse including tribal routines, even though I find this one is a bit boring in comparison to the ones from the previous games, and I don't stan the song. I hope it will grow on me anyway.