Solid Bloon Wall

In the next Bloons Tower Defense game, some levels will have Solid Bloon Walls scattered throughout some parts of the game area (but not on the path). Non-aerial towers cannot shoot through Solid Bloon Walls, but aerial towers (such as the Monkey Ace) can shoot over them. Solid Bloon Walls can be destroyed by towers that are trying to shoot through them, but cannot be targeted directly. The amount of health each Wall has depends on its size.