Climbing the room and remaining at the top has a very high risk of getting hit by a Waver. Quickly move to the right and exit G-mode to fix the camera. It is possible to kill the Wavers off-screen with one or two Power Bombs or a blue suit; Screw Attack is also relatively safe. With Morph alone, it is possible to cross but requires some luck.

Entrance condition:

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

Requires:

"canOffScreenMovement"
"canComplexGMode"
{
  "or": [
    "canWalljump",
    "SpaceJump",
    {
      "and": [
        "HiJump",
        "canTrickyUseFrozenEnemies"
      ]
    },
    {
      "and": [
        "HiJump",
        "canSpringBallJumpMidAir"
      ]
    }
  ]
}
{
  "or": [
    "ScrewAttack",
    "h_usePowerBomb",
    {
      "and": [
        "canBeLucky",
        "Morph"
      ]
    },
    {
      "haveBlueSuit": {}
    },
    {
      "enemyDamage": {
        "enemy": "Waver",
        "type": "contact",
        "hits": 1
      }
    }
  ]
}