Weapon Energy

Weapon Energy (武器エネルギー), also known as Special Weapon Energy (特殊武器エネルギー), Weapon Energy Recovery (武器エネルギー回復), and Weapon Capsule, recovers the energy for Special Weapons. Like Life Energy, it usually comes in two sizes, small and large. They restore an equal amount of weapon energy as the same sized Life Energy items. In some games like Mega Man 8 and Mega Man X5, it also comes in extra large versions that restore full weapon energy.

In Mega Man ZX and Mega Man ZX Advent they are called Biometal Energy (ライブメタルエネルギー, Livemetal Energy in Japan), and the larger ones can be sliced with a saber weapon to create smaller and different types of energy.

Energy Soul
Energy Soul is a variation of the Soul Item from Mega Man Xtreme 2. It has the same effect of the normal Weapon Energy when collected, but also acts as currency to obtain Parts.

Special Weapon Recharge Cube
Special Weapon Recharge Cube (特殊武器回復キューブ) is an item from the Mega Man Legends series that recharges the energy of the equipped Special Weapon.