Instructions
Fight battles with Wakka in your party. When the battle ends, each character in the party, including Wakka, earns a varying amount of AP. After gaining enough AP for your current level, you gain a Sphere Level.
Collect different types of common Spheres by defeating enemies in battle. You earn one common Sphere per battle you complete. Sphere types include Speed, Power, Mana and Ability.
Bribe enemies with money, called Gil, to earn special and rare Spheres. You also earn special Spheres by buying them or finding them in chests. A few examples of special Spheres include HP, MP, Defense and Key.
Open the menu and then open the Sphere Grid. Select Wakka to view his section of the Sphere Grid.
Select a node. When you level up, you can move one node further on the Sphere Grid. Choose a Sphere to place on the node, and you gain that ability.
Use a Key Sphere to turn a locked node into an empty node. This allows Wakka to move outside of his section of the Sphere Grid, where he can learn much more powerful abilities.