There are 3 types of skills in Battle Spheres. The maximum level for each skill is 5.
1. Active skills have a cooldown and have to be activated by the player.
2. Support skills are activated when a player's Battle Spheres' bump into each other.
3. Passive skills benefits remain active throughout gameplay and do not need to be activated.
Each Battle Sphere can have 1 Active skill, 1 Support skill and up to 3 Passive skills.