Though I haven’t gotten an answer about what songs are allowed, I figure it’s fine since I just went back and looked at the original Shufflecomp rules, which the itch.io page says the 2025 rules are based on. The original rules include this:
I looked up Celph Titled, and he’s a rapper with very explicit lyrics. So, I’m assuming this above quote is the general ruleset we’re operating under, which means I have good and bad news for everyone participating. The good news is that I have no plans to submit anything explicit or NSFW, like Celph Titled, to the songlist. The bad news is that though I swore off Five Nights at Freddy’s this year, I have a laundry list of other MatPat-tier interests and nothing can stop me from submitting their songs, which I will do now instead of being reasonable and waiting for clarification because impatience is my cardinal sin when it comes to forcing awful music upon strangers. Shufflecomp’s random enemy encounters are still a go.