Follow the crab from the bottom right door to the top right door. Depending on the item setup, this takes 30-50 seconds. Keep a half-tile gap between the crab and the runway in order to extend it as much as possible.

Requires:

"h_canFrozenEnemyRunway"
"Gravity"
{
  "or": [
    "SpaceJump",
    "canGravityJump",
    "Grapple"
  ]
}

Exit condition:

{
  "leaveWithRunway": {
    "length": 6,
    "openEnd": 0
  }
}