Energy Saving Parts are items in the video game No More Heroes. They are specific motherboards used in the construction of a beam katana. Adding a motherboard to the beam katana itself increases its energy efficiency, resulting in longer durations of use without recharging the blade, and a more powerful beam katana altogether. The most efficient Energy Saving Parts are ones designed to fit into a beam katana's motherboard, which cause the blade to always be in a state of maximum capacity, never having to be recharged again. Energy Saving Parts are designed by Saber Saving System.