Only requires a runway of 5 tiles (with an open end) in the adjacent room. Perform an air ball while against the ceiling to make it up and through the morph tunnel.

Entrance condition:

{
  "comeInJumping": {
    "speedBooster": true,
    "minTiles": 5
  }
}

Requires:

{
  "notable": "Cross Room Jump Morph"
}
"canCrossRoomJumpIntoWater"
"canMomentumConservingMorph"