If Samus runs into the room and quickly destroys the shot block, a Kihunter will immediately fall down. To avoid this, either spin jump into the room, or wait a moment before shooting the block.

Requires:

{
  "resetRoom": {
    "nodes": [
      2
    ]
  }
}
"canDodgeWhileShooting"
{
  "or": [
    "HiJump",
    "canWallJump",
    "h_crouchJumpDownGrab",
    "SpaceJump"
  ]
}
{
  "or": [
    {
      "and": [
        "canDash",
        {
          "or": [
            {
              "and": [
                "Plasma",
                {
                  "cycleFrames": 480
                }
              ]
            },
            {
              "and": [
                "ScrewAttack",
                {
                  "cycleFrames": 570
                }
              ]
            },
            {
              "and": [
                "Wave",
                {
                  "cycleFrames": 660
                }
              ]
            },
            {
              "and": [
                "Spazer",
                {
                  "cycleFrames": 660
                }
              ]
            },
            {
              "and": [
                "Charge",
                {
                  "cycleFrames": 780
                }
              ]
            },
            {
              "and": [
                "Ice",
                {
                  "cycleFrames": 840
                }
              ]
            },
            {
              "and": [
                "canTrickyDodgeEnemies",
                {
                  "cycleFrames": 1200
                }
              ]
            }
          ]
        }
      ]
    },
    {
      "and": [
        {
          "haveBlueSuit": {}
        },
        {
          "cycleFrames": 600
        }
      ]
    }
  ]
}

Clears obstacles: C, D

Resets obstacles: A, B

Farm cycle drops: 4 Kihunter (green)