S Center

S Center is an Expert track in BTD6 (Unlocked at Rank 42)

Overview
A grassy, and cliffy environment. The path form a big "S" on the center, hence the name. Bloons travel first into a tunnel, then going out of it, forming an S, and exits into an another tunnel. You can build towers on cliffs. There is a fence at the center of the path's sides. There are path locations and points shown in the picture. No water. Available in Co-op Mode.