12

Entrance condition:

{
  "comeInWithGMode": {
    "mode": "any",
    "morphed": true
  },
  "comesThroughToilet": "any"
}

Requires:

"Gravity"
{
  "or": [
    "h_artificialMorphIBJ",
    {
      "and": [
        "h_artificialMorphSpringBall",
        {
          "or": [
            "canGravityJump",
            "HiJump"
          ]
        }
      ]
    },
    {
      "and": [
        "h_artificialMorphSpringBallBombJump",
        "h_additionalBomb"
      ]
    }
  ]
}

Dev note: It is assumed that the door is open.