Entrance condition:

{
  "comeInWithSidePlatform": {
    "platforms": [
      {
        "minHeight": 2,
        "maxHeight": 2,
        "minTiles": 27.4375,
        "speedBooster": true,
        "obstructions": [
          [
            1,
            0
          ]
        ],
        "requires": [],
        "note": [
          "This applies to Dust Torizo Room."
        ]
      },
      {
        "minHeight": 3,
        "maxHeight": 3,
        "minTiles": 39.4375,
        "speedBooster": true,
        "obstructions": [
          [
            3,
            2
          ]
        ],
        "note": [
          "This applies to Metal Pirates Room."
        ]
      },
      {
        "minHeight": 2,
        "maxHeight": 2,
        "minTiles": 45,
        "speedBooster": true,
        "obstructions": [
          [
            3,
            0
          ]
        ],
        "requires": [
          "canMomentumConservingMorph",
          "canInsaneJump"
        ],
        "note": [
          "This applies to Statues Hallway.",
          "Using the full runway with a single-pixel arm pump, this has a 4-frame window for the jump,",
          "and between a 2-frame and 4-frame window for the morph (with later jumps giving a larger window)."
        ]
      },
      {
        "minHeight": 3,
        "maxHeight": 3,
        "minTiles": 39.4375,
        "speedBooster": true,
        "obstructions": [
          [
            3,
            0
          ]
        ],
        "requires": [
          "canMomentumConservingMorph",
          "canInsaneJump"
        ],
        "note": [
          "This applies to Flyway.",
          "Using the full runway, this has a 2-frame window for the jump,",
          "and either a 1-frame window and 2-frame window for the morph, depending on the jump timing (last-frame jump being better)."
        ]
      },
      {
        "minHeight": 2,
        "maxHeight": 2,
        "minTiles": 45,
        "speedBooster": true,
        "obstructions": [
          [
            4,
            0
          ]
        ],
        "requires": [
          "canMomentumConservingMorph",
          "canInsaneJump",
          "canInsaneMidAirMorph"
        ],
        "note": [
          "This applies to Baby Kraid Room.",
          "Using the full runway, this is double frame perfect:",
          "it requires jumping on the last possible frame before Samus would bonk on the doorway ledge,",
          "and morphing on the last possible frame before Samus would bonk the ceiling."
        ]
      }
    ]
  }
}

Requires:

"canSpringBallJumpMidAir"
"canCrossRoomJumpIntoWater"