An Energy Tank holds an additional 100 health units for Samus Aran (or other hunters in MPH online) while playing through story modes. They are found as the player progresses, being used in a stacking system. This occurs in accordance with an increasing level of difficulty and need for a greater health capacity. The Energy Tanks are not always easy to find, usually in a hidden hole needed to be cleared by using a Bomb. In the beginning of the game, the Energy Tanks are usually easier to find than as you progress further into the game.
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