The Battle Ring is a mechanic seen in Wario World. When Wario walks into certain circular pieces of land, he has entered what is know as a Battle Ring. A force field covers the area that the battle ring inhabits, blocking Wario from exiting it. Numerous enemies will appear in the battle ring. The player has 60 seconds to defeat as many of the enemies that he can. Different types of enemies appear as others are defeated. There is one Battle Ring per level.
When the battle is over, a Wooden Chest will appear with the coins that he get's. The more enemies the player has defeated, the more coins you are rewarded. Once a battle ring has been completed, it does not return. Due to this, it is important to try and get the most money possible from each ring.