Fully overload PLMs with the item before climbing the room. The hardest part is getting past the Reo without Power Bombs, if it is stuck in the stairwell just above the door. Either manipulate it until it can escape, get it stuck swooping in the top right corner of the stairwell then kill it with Bombs, or avoid it entirely, and go up through the crumble blocks to the left after manipulating the Sidehoppers to be off-camera at the right of their pit. Dodge or kill the Sidehoppers then go through the crumble block. Place a Power Bomb then quickly exit G-mode before it explodes to break the Power Bomb blocks.

Requires:

"canEnterGMode"
{
  "or": [
    "Morph",
    "h_artificialMorphIBJ",
    {
      "and": [
        "HiJump",
        "h_artificialMorphSpringBall"
      ]
    },
    {
      "and": [
        {
          "or": [
            "h_artificialMorphSpringBallBombJump",
            "h_artificialMorphSpringFling"
          ]
        },
        {
          "or": [
            "h_artificialMorphSpringBallBombJump",
            "canTrickyJump"
          ]
        }
      ]
    }
  ]
}
{
  "or": [
    "Morph",
    "canInsaneJump",
    {
      "and": [
        "canTrickyDodgeEnemies",
        "h_artificialMorphSpringBall"
      ]
    },
    "h_artificialMorphPowerBomb",
    {
      "enemyDamage": {
        "enemy": "Reo",
        "type": "contact",
        "hits": 1
      }
    }
  ]
}
"h_artificialMorphPowerBomb"