Bloons will appear on three rays that also exits in three rays. The step-by-step appearance of bloons' process are shown in the slideshow in this page. This track is like Country Road in BTD5, but this track has more paths and shorter time of the bloons to appear than the track Country Road. The starting and ending points where bloons appear are seen. You can build towers on the sun because that's only made of Aerogel, and in the clouds, but not in the skies. No water. (Unlocked at Rank 64)