Be careful to avoid the stationary, invisible projectiles that the pirates spawn from where they jump. It is possible to exit G-mode and quicky pause abuse, to collect the pirates' drops and open the door and leave. Otherwise, it requires exiting G-mode at the left side of the room, shooting the door and returning to the right side of the room.

Requires:

"h_heatedGMode"
{
  "or": [
    {
      "ammo": {
        "type": "Super",
        "count": 6
      }
    },
    {
      "ammo": {
        "type": "Missile",
        "count": 36
      }
    }
  ]
}
{
  "or": [
    {
      "heatFrames": 190
    },
    "h_heatedGModePauseAbuse"
  ]
}

Clears obstacles: A

Dev note: FIXME: These heat frames would be lower if both doors were locked and either could be used to set the metal pirates kill flag. It is possible to enter the room in direct G-mode, kill the pirates, return to the open door, then exit G-mode and quickly touch the transition to awaken Zebes (but not get the metal pirates kill flag). This is not included, as it is a very niche knowledge check, and at that point, you might as well pause abuse to get the pirate drops and both flags.