Quickly kill the Mochtroids with Bombs or a Power Bomb, or just roll into place and Gravity jump before they get to Samus. (With Bombs, place them without moving horizontally, such that multiple hit the Mochtroid immediately as it attaches without being boosted into the doorway or sand.) Start with a precise Gravity jump, where the initial jump is just before the pause fully triggers. Turn off Spring Ball and Gravity at the same time, then precisely repause and turn Spring back on.

Entrance condition:

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

Requires:

"canGravityJump"
{
  "tech": "canSpringBallJumpMidAir"
}
"h_canArtificialMorphSpringBall"
"canTrickyJump"