Tubular

Tubular, an advanced difficulty track, at first glance, is an easy track. But upon closer examination, you notice the tunnels or "tubes". These tubes make hitting bloons much harder, due to not being able to hit them while in the tunnels. The tunnels also behave like the tunnels on Monkey Lane, but the ones on Tubular are smaller and towers cannot be placed on them. MOABs, BFBs, and ZOMGs simply float over the tubes.

Tips

 * Spike Factories are advised here, since most towers will have difficulties hitting. However, the Spike Factory is not affected by the tubes.