FNF Undertale Last Breath Vs Sans

Game description:

A new opponent turns up in the FNF world. It treacherous skeleton from Undertale. You know well he cannot be trusted, and Boyfriend needs to get rid of him as fast as possible. But how can you achieve it without being attacked by Sana? There is only one solution here – to invite the antagonist to a music arena for a new type of fight for him. And it will be a dancing competition. Help Boyfriend move better and fully sync with the rhythm to outperform this dangerous monster forever.