From the Super Mario Wiki
Retrieved from "https://www.mariowiki.com/index.php?title=Big_Ball&oldid=2389891"
The Big Ball is an enemy in Wario Land 4. It appears only in the final battle against the Golden Diva, being the second of the five creatures that she produces to harm Wario. It is a blue ball with a pink imprint of the Topaz Passage boss Aerodent. During the battle, the Golden Diva throws the Big Ball, and it lands heavily on the ground. If left alone for a few seconds, it detonate its own, harming Wario if he is nearby. If Wario rams the Big Ball on its side, however, it will go flying at a 45º angle and reflect off the walls, possibly hitting the Golden Diva to inflict damage and counter her attack.