Entrance condition:

{
  "comeInWithGMode": {
    "mode": "any",
    "morphed": false
  }
}

Requires:

"Morph"
"h_navigateUnderwater"
{
  "or": [
    "canGravityJump",
    {
      "and": [
        "Gravity",
        "HiJump",
        {
          "or": [
            "canSpringBallJumpMidAir",
            "canWalljump"
          ]
        }
      ]
    },
    {
      "and": [
        "canTrickyUseFrozenEnemies",
        "HiJump",
        "h_crouchJumpDownGrab"
      ]
    },
    {
      "and": [
        {
          "ammo": {
            "type": "Super",
            "count": 1
          }
        },
        "canTrickyUseFrozenEnemies",
        "canOffScreenMovement"
      ]
    },
    {
      "and": [
        "canTrickyJump",
        "canSpringBallJumpMidAir",
        "canTrickyUseFrozenEnemies",
        "canOffScreenMovement"
      ]
    }
  ]
}