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}