After completing the game, you will be told that there are many mysterious waves occuring across every dungeon.
In the dungeon list, you can check as to how many waves there are in each dungeon. When you enter a dungeon, a few floors will have these strange waves.
The waves all have different effects like blocking Hit Points to increased Power Points Usage, putting all opponents to sleep and the activation of weather etc.
The floors where these waves occur are completely random in each dungeon.
