Requires:

"Morph",
{"or": [
  {"and": [
    "Gravity",
    {"or": [
      "HiJump",
      "canWallJump",
      "canSpeedyJump",
      "SpaceJump",
      "canSpringBallJumpMidAir",
      "canSpringBallBombJump",
      "canGravityJump",
      {"and": [
        "h_crouchJumpDownGrab",
        "canTrickyJump"
      ]}
    ]}
  ]},
  {"and": [
    "canSuitlessMaridia",
    {"or": [
      "canTrickyUseFrozenEnemies",
      {"and": [
        "HiJump",
        "canSpringBallJumpMidAir"
      ]},
      "canUnderwaterWallJump"
    ]}
  ]}
]}

Dev note: The canCrouchJump is not a h_underwaterCrouchJump, because Gravity is required.