Settings don't save. I tried multiple times to change things and nothing saved.
Always-run should be an option.
Settings menu can get stuck if you use a controller and go all the way down to the color selector, press down 2 more times, then left/right a few times. It will act like you're selecting things. Then if you back out from there the settings screen will stay up while the game "continues" to play. You can hear yourselve moving in the background via grass or walls.