Enter with a falling pose in order to be able to spark immediately on entry. This may require a quick drop through the sand in the room above. Sparking very quickly on entry can be used to avoid the Evir projectile.

Entrance condition:

{
  "comeInShinecharged": {},
  "comesThroughToilet": "any"
}

Requires:

{
  "shineChargeFrames": 10
}
"canSuitlessMaridia"
"canShinechargeMovementComplex"
"canHorizontalMidairShinespark"
"canPrepareForNextRoom"
{
  "or": [
    "canTrickyDodgeEnemies",
    {
      "enemyDamage": {
        "enemy": "Evir",
        "type": "particle",
        "hits": 1
      }
    }
  ]
}
{
  "shinespark": {
    "frames": 39,
    "excessFrames": 16
  }
}

Dev note: Frames are all assuming a toilet entry, frames could be reduced slightly if entering in a more favorable position. While the shinecharge frames could be smaller, this gives a small buffer to orient the direction Samus is facing in the room above. FIXME: It is possible to come in with Gravity and more frames, jump off the sand and pillar, and hero shot spark out the door.