The Baller is a Special Weapon in Splatoon 2.
When used, an Inkling enters a large plastic bubble. While in the ball, they can move quickly and will take less damage. The Baller is also capable of moving up walls like in Squid form. Once inside the ball, the player can detonate the ball to explode. It will cover the surrounding area in ink.
The Baller can be destroyed by other players. When shot by the enemy, the ball will slowly shrink in size.