Hard Mode is a difficulty level featured in Metroid: Zero Mission, Metroid Prime, Metroid Prime 2: Echoes, and Metroid: Other M. In the Prime games, it was a difficulty with stronger enemies and more health. It is referred to in Metroid Prime 3: Corruption and the Metroid Prime Trilogy as Hypermode difficulty. Zero Mission's Hard Mode strengthens enemies, but also cuts down the gain from Expansions. Other M takes a differant approach to raise the difficulty. Its Hard Mode has no Expansions whatsoever. This means that Samus must go through the game with 99 energy and 10 Missiles, making fights extremely difficult especially considering Other M's lack of pickups.