Open the top left door then shinecharge on the plateau and horizontally spark through the open door.

Requires:

{"obstaclesCleared": ["C"]},
{"canShineCharge": {
  "usedTiles": 19,
  "steepUpTiles": 2,
  "steepDownTiles": 1,
  "openEnd": 2
}},
{"shinespark": {"frames": 125, "excessFrames": 0}}

Exit condition:

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

Unlocks doors:

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

Dev note: Unlocking the door is free since the obstacle C cleared means that any lock was already taken care of.