Obstacle

The wooden walls and trees are an example of an Obstacle.

Obstacle is an object that serves no functional purpose, other than preventing Super Animals, Giant Emus and Hamster Balls from passing through it, and blocking  Melee Weapon from damaging any objects or creatures behind.

Depending on how tall the obstacle is, it may also stop Throwables and Gun projectiles from passing through, and block a Super Animal's field of vision, causing fog of war to appear in the areas behind it. Throwables and  Big Clucking Gun eggs will bounce off in the opposite direction, if they do not exceed the height of an obstacle in their flying arc.