Store a shinespark then use screw to break through the bomb blocks down to the item location.

Entrance condition:

{
  "comeInShinecharging": {
    "length": 12,
    "openEnd": 0
  }
}

Requires:

{
  "notable": "Descent and Shinespark Escape"
}
"ScrewAttack"
"canShinechargeMovement"
{
  "heatFrames": 170
}

Clears obstacles: A, B, C