Run through the pirates while taking damage or by using Plasma Beam. It is possible to get through the lower three pirates with a single hit while using i-frames to prevent a second hit. Either wait above until the pirates are a bit closer together and then run through, or arm-pump or horizontal damage boost to get through them fast enough.

Requires:

{
  "or": [
    {
      "enemyDamage": {
        "enemy": "Tourian Space Pirate (all)",
        "type": "contact",
        "hits": 4
      }
    },
    {
      "and": [
        "Plasma",
        "canHitbox"
      ]
    },
    {
      "and": [
        "canUseIFrames",
        {
          "enemyDamage": {
            "enemy": "Tourian Space Pirate (all)",
            "type": "contact",
            "hits": 3
          }
        },
        {
          "or": [
            "canCameraManip",
            "canHorizontalDamageBoost"
          ]
        }
      ]
    }
  ]
}