Ability to enter G-mode starting with high reserve energy, resulting in Samus being immobilized. Have 5 or more energy in reserves (set to Auto), take damage while going through a door, use X-Ray while entering the next room, and release X-ray immediately before reserves finish filling (a 3-frame window when starting with 12 or more reserve energy, a much larger frame window if you have between 5 and 11). Samus will be unable to move until getting hit by an enemy (or until canceling G-mode by using X-Ray).

Dependencies: canEnterGMode, canUseEnemies, canEnterRMode, canManageReserves, canPreciseReserveRefill