Muting the background music doesn't save when switching areas for safari (Mac). I have to go to options and re-mute every time I explore a new area (monster to monster) or switch area (town square to explore, etc).
@joemama1512 You could upgrade the dart monkeys to see camo, and get the juggernaut upgrade (4th on the left side) to be able to hit lead so you can beat round 59.
you should be able to choose which specialty building upgrades you want to use. for example, someone might want to get the 5% discount and 10% extra speed for bomb towers, but still face the challenge of not being able to pop black and zebra bloons. They shouldn't be unable to do this just because they already fully upgraded the bombing range.