Bomb Slot

A Morph Ball Bomb Slot is a device that is used to fulfill certain goals found in the Prime Trilogy. Bomb Slots require a surge of power to function any device they are connected to. This "surge" can only be created by a Morph Ball Bomb.

Utilising Bomb Slots are often key to triggering an action that allows Samus to further progress. For example: opening gates, powering devices and activating a puzzle sequence. Sometimes Bomb Slots are used for offensive purposes--in Metroid Prime 2: Echoes, the Spider Ball Guardian can only be defeated by using Bomb Slots to change the direction of its movement, so it crashes into the energy blocks. Also, the Quadraxis Final Head Module can only be destroyed when Samus rolls up into a Morph Ball and boosts onto the exposed magnetic-rail head. Samus then has to roll into one of the two bomb slots to and detonate a bomb to blow it up. Usually, the bomb slot can be activated immediately by detonating one of the ordinary bombs, but some have to receive a power supply to make them function.

Log Book entry
Metroid Prime 2: Echoes: "Device: Bomb Slot. Powered system control unit. Insert the Morph Ball into the slot, then detonate a Bomb. This will transfer from the slot to the device connected to it."