After entering with R-mode, perform a Crystal Flash to fully refill at some point before the rainbow beam attack. When Mother Brain is about to do the rainbow beam attack, set up a 'light pillar': this is done by using X-Ray, deselecting X-Ray while continuing to hold dash, then briefly releasing dash for one or two frames before repressing dash. During the rainbow beam attack, release dash while the auto-reserve refill is happening.
        From: 4 
    Mother Brain (Phases 2 and 3) 
        To: 4 
Mother Brain (Phases 2 and 3) 
 After entering with R-mode, perform a Crystal Flash to fully refill at some point before the rainbow beam attack. When Mother Brain is about to do the rainbow beam attack, set up a 'light pillar': this is done by using X-Ray, deselecting X-Ray while continuing to hold dash, then briefly releasing dash for one or two frames before repressing dash. During the rainbow beam attack, release dash while the auto-reserve refill is happening. Requires: {
  "notable": "R-Mode Light Pillar"
}
{
  "obstaclesCleared": [
    "A"
  ]
}
"h_CrystalFlash"
{
  "enemyKill": {
    "enemies": [
      [
        "Mother Brain 2"
      ]
    ]
  }
}
"Varia"
{
  "resourceAvailable": [
    {
      "type": "Energy",
      "count": 301
    }
  ]
}
"i_MotherBrainBarrier1Clear"
"i_MotherBrainBarrier2Clear"
"i_MotherBrainBarrier3Clear"
"i_MotherBrainBarrier4Clear"Sets flags: f_ZebesSetAblaze, f_DefeatedMotherBrain  |