Another key component of the title is the "Orb Attack" / "Orb Spark" element. Killing enemies yields red orbs that are stored up until the "Orb Attack" bar is full. Once the bar is full, a player may press B to enter "Orb Attack" mode, where the character can use powerful attacks to slay groups of enemies. Enemies killed while in this mode drop blue, not red, orbs. Once a player has stored up enough blue orbs (which usually require several "Orb Attacks"), he or she can unleash a super-devastating, screen-clearing "Orb Spark" attack. Killing enemies yields the occasional equipment drop, which you can equip any time during a map as long as you are not retaliating from an attack, in midair, or in the middle of an attack.