Requires:

"Morph"
{
  "ammo": {
    "type": "PowerBomb",
    "count": 3
  }
}
{
  "or": [
    "canDodgeWhileShooting",
    {
      "enemyDamage": {
        "enemy": "Waver",
        "type": "contact",
        "hits": 1
      }
    }
  ]
}
{
  "or": [
    "canCarefulJump",
    {
      "ammo": {
        "type": "PowerBomb",
        "count": 1
      }
    },
    {
      "acidFrames": 104
    }
  ]
}

Clears obstacles: A