Gravity Barriers and Warps The main gimmicks in this dungeon are gravity barriers. They are extremely dense and you need a full team NGB monsters to move around and deal damage. NW is optional, as warps are not all that common and can be maneuvered around quite easily. Ribbon Two stages in this dungeon feature all wood mobs. To combat this bring at most 2 water monsters so you don't take in extra, unnecessary damage from these stages.