With only 1 tile of runway in the other room, this requires subpixel-precise positioning and a double frame-perfect stutter: At the start of the run, Samus must be on the last pixel of runway with X subpixels of $3FFF or less. Run toward the door, releasing forward for exactly 1 frame and pressing it again on the last possible frame before the transition. After the transition, shoot open the opposite door while running, to extend the runway by a tile.

Correct subpixels can be achieved using one of several methods: 1) press against the door ledge (or a wall aligned with it); jump, and while mid-air, tap forward for exactly 1 frame to land with subpixels $BFFF, moonwalk back for exactly 1 frame to end with subpixels $3FFF. 2) press against the door ledge (from a platform below, assuming one exists) turn around (while on the ground), and moonwalk back two pixels, then jump and mid-air turnaround onto the ledge; if Samus jumped from the correct pixel but does not land on the ledge, then it was needed to moonwalk back 1 more frame; in this case it is possible to retry by doing a mid-air turnaround back onto the platform, and moonwalking back for 1 frame. 3) if X-Ray is available, press against the door ledge (from a platform below, assuming one exists) turn around (while on the ground), then jump and mid-air turnaround toward the door, and use X-Ray to turnaround in place away from the door; repeat this sequence 3 more times: jump, mid-air turnaround, X-Ray turnaround; then do one more jump and mid-air turnaround, high enough to land on the door ledge, and Samus should be in the correct position with subpixels $3FFF.

Entrance condition:

{
  "comeInStutterShinecharging": {
    "minTiles": 1
  }
}

Requires:

"canPreciseStutterWaterShineCharge"
"canInsaneJump"
"canBeVeryPatient"
{
  "doorUnlockedAtNode": 2
}
{
  "shineChargeFrames": 0
}

Unlocks doors:

{"nodeId":2,"types":["super","missiles"],"requires":[]}
{"nodeId":2,"types":["powerbomb"],"requires":["never"]}

Dev note: The `canBeVeryPatient` is for difficulty placement; this could be improved with a more specific tech later, since it does not actually take a long time to execute.