Either kill the Sidehoppers immediately on entry by placing a Power Bomb while rolling off the stair, dodge them multiple times, or tank their hits. If Samus has Morph Ball, it is also possible to kill the Sidehoppers upon room entry with Screw Attack or a powerful beam. Overload the PLMs by rolling through the camera scroll blocks which are 4 tiles to the right of the stair by the door. Roll under the last Sidehopper and through the bomb blocks. Place a Power Bomb next to the right wall then quickly exit G-mode before it explodes to destroy the blocks.

Entrance condition:

{
  "comeInWithGMode": {
    "mode": "indirect",
    "morphed": true
  }
}

Requires:

{
  "or": [
    {
      "enemyDamage": {
        "enemy": "Sidehopper",
        "type": "contact",
        "hits": 2
      }
    },
    "h_artificialMorphPowerBomb",
    "canInsaneJump"
  ]
}
"h_artificialMorphPowerBomb"
{
  "or": [
    "h_artificialMorphMovement",
    "h_additionalBomb"
  ]
}

Clears obstacles: B, D