Open the top left door then shinecharge near the top right door, drop down and horizontally spark through the open door.

Requires:

{"obstaclesCleared": ["C"]},
{"or": [
  {"canShineCharge": {"usedTiles": 30, "steepUpTiles": 9, "openEnd": 1}},
  {"and": [
    {"canShineCharge": {"usedTiles": 31, "steepUpTiles": 9, "openEnd": 1}},
    {"doorUnlockedAtNode": 3}
  ]}
]},
{"shinespark": {"frames": 125, "excessFrames": 0}}

Exit condition:

"leaveWithSpark": {
  "position": "top",
  "grounded": true
}

Unlocks doors:

{"types": ["ammo"], "requires": [], "useImplicitRequires": false}

Dev note: The top left door must be open, so an entrance condition at this node cannot be used. Unlocking the door is free since the obstacle C cleared means that any lock was already taken care of.