Cross the room while in indirect G-Mode and the gate will not be there. From the right edge of the top stair, pause then press right and jump just before the pause fully triggers and when the water is low. Disable Spring Ball in order to get a large horizontal boost.

Entrance condition:

{
  "comeInWithGMode": {
    "mode": "indirect",
    "morphed": true
  }
}

Requires:

"h_artificialMorphSpringFling"
"canTrickyJump"
{
  "disableEquipment": "HiJump"
}

Clears obstacles: B

Dev note: FIXME: It is possible but difficult to cross either of the moats with Grapple before PLMs are overloaded, but not both of them.