Hopping Metroids are a variety of Metroids caused by Phazon mutation. They have lost the ability to levitate, but are still vulnerable to extreme cold. Hopping Metroids are found in only two locations in the game. One is in the landing area outside Generator B, where they spawn from a large mass. They are later encountered on Phaaze. Hopping Metroids are able to enter Hypermode, making them much stronger. Hopping Metroids are a relatively weak variety of Metroid compared to their other mutated counterparts.
- "Radical mutation has removed the ability to fly from this strain of Metroid, but its vulnerability to cold remains. Subject now uses its powerful legs for locomotion. Legs contain sharp formations of Phazite, which the creature uses to slice through enemy defenses." — Logbook "Hopping Metroid" (Metroid Prime 3: Corruption)