Jump onto the crumble blocks to make them solid, then use them as a platform to cross the room. In indirect G-mode, stand where the gate will spawn and exit G-mode to open the gate. In direct G-mode, overload PLMs by shooting the gate then position Samus a few pixels away from the gate to where upward diagonal shots go through it. Crouch then shoot diagonally and quickly exit G-mode (3-7 frames later) to open the gate on G-mode exit.

Entrance condition:

"comeInWithGMode": {
  "mode": "any",
  "morphed": false
}

Requires:

"canComplexGMode",
"h_heatedGMode",
{"or": [
  {"and": [
    "ScrewAttack",
    {"noBlueSuit": {}}
  ]},
  "h_usePowerBomb",
  {"ammo": {"type": "Missile", "count": 2}},
  {"ammo": {"type": "Super", "count": 1}}
]},
"canIBJ",
"canBombHorizontally",
{"heatFrames": 35}

Clears obstacles: A

Dev note: The canComplexGMode is only used here to describe opening the gate in direct G-mode without gate glitching. However, the indirect variant still requires canHeatedGMode or Varia - with Varia, indirect strats can instead be used to go to the top left door and return.