Shinecharge near the top right door, drop down and horizontally spark towards the left door.

Requires:

{
  "or": [
    {
      "canShineCharge": {
        "usedTiles": 30,
        "steepUpTiles": 9,
        "openEnd": 1
      }
    },
    {
      "and": [
        {
          "canShineCharge": {
            "usedTiles": 31,
            "steepUpTiles": 9,
            "openEnd": 1
          }
        },
        {
          "doorUnlockedAtNode": 3
        }
      ]
    }
  ]
}
"canHorizontalShinespark"
{
  "shinespark": {
    "frames": 125,
    "excessFrames": 33
  }
}

Clears obstacles: A

Unlocks doors:

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