Gain blue speed in the other room, jump through the transition, then speedball under the shutters.

Entrance condition:

{
  "comeInWithSidePlatform": {
    "platforms": [
      {
        "minHeight": 1,
        "maxHeight": 1,
        "minTiles": 16,
        "speedBooster": true,
        "obstructions": [
          [
            1,
            0
          ]
        ],
        "note": [
          "This applies to Lava Dive."
        ]
      },
      {
        "minHeight": 2,
        "maxHeight": 2,
        "minTiles": 27.4375,
        "speedBooster": true,
        "obstructions": [
          [
            1,
            0
          ]
        ],
        "note": [
          "This applies to Dust Torizo Room and Noob Bridge."
        ]
      },
      {
        "minHeight": 3,
        "maxHeight": 3,
        "minTiles": 15.4375,
        "speedBooster": true,
        "obstructions": [
          [
            1,
            0
          ]
        ],
        "requires": [
          "HiJump",
          {
            "getBlueSpeed": {
              "usedTiles": 14,
              "openEnd": 1
            }
          }
        ],
        "note": [
          "This applies to Botwoon's Room."
        ]
      },
      {
        "minHeight": 3,
        "maxHeight": 3,
        "minTiles": 28.2472,
        "speedBooster": true,
        "obstructions": [
          [
            1,
            0
          ]
        ],
        "note": [
          "This applies to Double Chamber."
        ]
      }
    ]
  }
}

Requires:

{
  "getBlueSpeed": {
    "usedTiles": 15,
    "openEnd": 1
  }
}
"canSpeedball"
"canChainTemporaryBlue"
"canInsaneJump"

Exit condition:

{
  "leaveWithTemporaryBlue": {}
}

Unlocks doors:

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