Just curious if "sound is required" can be added to the game rules, as it's not in the rules as of now. My runs were rejected for this reason, even though it is not listed on the rules page

It's weird to see that, but I had a 1'12 run of a stage that was declined because of no sound. There's a built in audio device on the phone itself, so I'm surprised that an app like Omelet Arcade can't get sound from NFS MW Mobile, without a headset, but it can get something like Dragon Ball Legends, with the phone volume itself at 0. NFS MW Mobile I believe has no internal audio that can be captured, meaning the phone volume has to be up to get any audio feedback captured.