Power Bomb Ammo

Power Bomb Ammo is an item in the Metroid series that replenishes the Power Bomb count of Samus' Power Suit. They often appear as small orbs and can be collected by touching them. Power Bomb Ammo is released by defeated enemies and various storage containers on the different planets. It is the scarcest type of ammunition in the series.

The amount of Power Bombs restored on collecting one is usually five, but in the Prime Series it is always one, and in some other games they add even less. They are as follows:
 * Super Metroid - Small flashing Power Bombs that replenish five.
 * Metroid Fusion - Not present. Green X Parasites replenish instead.
 * Metroid: Zero Mission - Resembles Super Metroid ' s take, but replenishes 2.
 * Metroid Prime - Small yellow sphere with pink-ish energy emanating from it.
 * Metroid Prime 2: Echoes - A round object that glows yellow.

Logbook entry
Metroid Prime - "Power Bomb Ammunition. Resupplies Power Bomb with one round of ammo."