Green Energy Crystals are a type of crystal in Metroid Prime 4: Beyond, found throughout Viewros. They are the crystalized form of Green Energy. They can be placed on the Altar of Legacy to acquire upgrades in milestones:
- 25% - Psychic Beam Upgrade
- 50% - Control Beam Boost
- 75% - Green Energy Crystal Finder
- 100% - Memory Fruit and Legacy Suit
- 200% - Gallery Images