Freeze a small hopper to the side and kill the remaining Side Hoppers. Stand against the left wall (damage knockback will align Samus with the wall) and shoot up to freeze the hopper. Jump up to land on it, aligned with the wall. Alternatively, Jump and shoot down to freeze the hopper as a way to avoid damage. Fire a Super just above the door shell to hit the Gate. This strat involves shooting a Super diagonally from the correct height while flush against the left wall. Its acceleration will cause it to clip into the blue gate off-screen.

Requires:

{
  "notable": "Reverse Gate Glitch"
}
{
  "obstaclesNotCleared": [
    "A"
  ]
}
"canTrickyUseFrozenEnemies"
"canTrickyJump"
"canOffScreenSuperShot"
{
  "or": [
    "h_backIntoCorner",
    {
      "and": [
        {
          "enemyDamage": {
            "enemy": "Sidehopper",
            "type": "contact",
            "hits": 1
          }
        },
        "canNeutralDamageBoost"
      ]
    }
  ]
}

Clears obstacles: B