Brambled gate

Bramble walls are a type of barrier in Pikmin X: Deep Freeze. They are made of a sediment similar to dirt walls, but they are overgrown with green brambles, making them untouchable by Pikmin and resistant to explosions. To destroy a bramble wall, a Pikmin has to deploy a wickweed bud next to it. The flames from the wickweed light the brambles on fire, clearing them from the wall and allowing it to be destroyed by Pikmin like any other wall.