Level 1 “Unknown” Stage from Fighting Is Magic The Backrooms 3!!!
"Calm down, before the Flourescent lights were on and now the lights have gone out of nowhere, I better be careful where I walk otherwise, I'll end up hitting my head against the wall by accident and I'll stop for another level that I don't know where it will take me and I have no way of knowing."

*Level 1 “Unknown” Stage When you start Round 1, the game ends saying Fight, you start the fight but the stage lights start to go out and you have less vision to fight against Nightmare Ponies.

And don't worry, the lights come back on normally and will continue to follow the same pattern of turning on and off.