This one was pretty tough, we're definitely starting to get into uncharted territory now. If you go for this, I recommend practicing a LOT and finding good ways to tackle each cycle; it leads to making this B-Side super consistent. Also, this was really fun to do unlike Chapter 3 A-Side, probably due to it being shorter overall and having zero cutscenes to skip, as well as having good design.
Celeste on Steam (Currently on sale): https://store.steampowered.com/app/504230/...