製作などの日誌

GameObject[] targetObjects = GameObject.FindGameObjectsWithTag("Untagged");

var gameObjects = Object.FindObjectsOfType<GameObject>();

foreach (GameObject gameObject in gameObjects)
{
    if (gameObject.CompareTag("Untagged"))
    {

    }
}

参考リンク

• Why doesn't my script print all the objects in the scene? (Unity Forums)