Feature roadmap for Core GameKit. Please vote / suggest!

Yes #1 you have already nailed - i made another Prefab Pool - (and loving it!)

#2 It would be nice to be able to spawn child prefabs from main prefab when it is first spawned.

#3 I am using this to do flash:

public float flashPulse = 0.1f;
public float flashDuration = 0.9f;
public Color flashColor = Color.red;
public Transform flashObject;
public int currentHealth = 10;

private bool flashing;
private Color originalColor;
private int tempHealth;

private bool hitColor = false;
private float nextFlash;
private float stopFlashTime;

void Awake()
{
if(flashObject == null)
flashObject = transform;

originalColor = flashObject.GetComponent<Renderer>().material.color;
}

void Update()
{
if (currentHealth < tempHealth)
{
flashing = true;
stopFlashTime = Time.time + flashDuration;
}
tempHealth = currentHealth;

if (flashing)
{
Flash ();
if (Time.time > stopFlashTime)
{
flashObject.GetComponent<Renderer>().material.color = originalColor;
flashing = false;
}
}

}


void Flash()
{
//This is for slow down effect
if(tag == "Player")
{
if(Time.timeScale != 0.0f)
Time.timeScale = 0.3f;
}


flashObject.GetComponent<Renderer>().material.color = (hitColor) ? flashColor : originalColor;
if(Time.time > nextFlash)
{
hitColor = !hitColor;
nextFlash = Time.time + flashPulse;
}
}