With a way to move while morphed, use a Power Bomb while on the Power Bomb blocks and quickly exit G-mode. Otherwise, do so to the right of the Power Bomb blocks, quickly exit G-mode, and jump up and over to fall through the blocks. Fall down the spiky shaft and get to the door. Avoiding a spike hit is possible but tricky.

Requires:

"h_heatedGMode"
"canOffScreenMovement"
"h_artificialMorphPowerBomb"
{
  "or": [
    "h_artificialMorphMovement",
    {
      "heatFrames": 100
    }
  ]
}
{
  "or": [
    "canTrickyGMode",
    {
      "spikeHits": 1
    }
  ]
}
{
  "heatFrames": 350
}