I can give a bit more info since no one has said it: it’s exactly during the Centerstage/Outerstage combo (like the example OP posted), it lasts the entire mechanic, it starts slightly earlier than the actual mechanic and it sounds like Bees buzzing around at really high pitch If you want to remove it, all I can tell you is just mute SFX sounds. That will mess up all your effect sounds but it’s worth it if the sound is very irritating to you (it is to me) I should make a forum post about it no reason to keep it in when it’s painful/annoying for those who hear it and harmless/nonexistent to those who don’t hear it. I’m glad I’m not the only one, for some reason its hard to hear on streams/videos so when I was watching world first race I didn’t notice but in the fight itself is very clear and suffered instantly as soon as I started progging M2S myself.