Requires:

{
  "resetRoom": {
    "nodes": [
      2
    ]
  }
}
{
  "or": [
    "canQuickDrop",
    {
      "cycleFrames": 30
    }
  ]
}
{
  "or": [
    {
      "and": [
        "Wave",
        {
          "cycleFrames": 120
        }
      ]
    },
    {
      "and": [
        "Grapple",
        "canDodgeWhileShooting",
        {
          "cycleFrames": 240
        }
      ]
    },
    {
      "and": [
        "Morph",
        "canTrickyJump",
        {
          "cycleFrames": 300
        }
      ]
    },
    {
      "and": [
        "canTrivialMidAirMorph",
        "Bombs",
        {
          "cycleFrames": 1100
        }
      ]
    },
    {
      "and": [
        "Morph",
        {
          "or": [
            {
              "notable": "Return Through Crumble Blocks"
            },
            "Bombs"
          ]
        },
        {
          "or": [
            "canWalljump",
            {
              "and": [
                "HiJump",
                "canSpringBallJumpMidAir",
                "h_doubleEquipmentScreenCycleFrames"
              ]
            },
            "SpaceJump"
          ]
        },
        {
          "cycleFrames": 510
        }
      ]
    },
    {
      "cycleFrames": 2160
    }
  ]
}

Resets obstacles: A, B, C, D

Farm cycle drops: 1 Sova

The crumble blocks do not respawn, so it is possible to enter from the right, obtain the left item and return, without needing to break the bomb blocks.

Requires:

{
  "notable": "Return Through Crumble Blocks"
}
{
  "obstaclesCleared": [
    "A"
  ]
}