Rhythm Games

In which last month, Youtube user The Gamer 540, attempts an Any% speedrun towards reaching the end of Chapter 1, focusing entirely on Middle-difficulty charts with the CHARGE decryption style (although later on, the HARMONY one) engaged in order to gain higher amounts of Battery, which will then only be used to unlock...

Most of the news articles on this are in Russian, but there's also this English article.

This article is a pretty good summary of what has been shown about the game so far....