In order to keep the light on you need to avoid Badeline in the starting room. Only from hitting her does she activate her guiding mode otherwise its assumed for casual play that you would blindfold yourself without Badeline guiding you.
Oh damn, I’m stupid. xD I’ve been grinding Beginner Heartside too much and forgot the regular level didn’t auto-turn black and somehow it confused me. Well, thanks for answering me this fast! :)
Edit: Tried to delete the thread as it turns out to be a really silly question, but it only deleted my first message. Oh well, title says it all.
Hey strawberry jammers, quick announcement:
Since the individual levels page here can get very cluttered having to list every SJ level, we've created a spreadsheet to display those leaderboards in a more fitting format! The sheet has different tabs for every individual lobby, and lists the top 10