Test

Assets/Standard Assets/ParticleSystems/Scripts/ParticleSystemMultiplier.cs

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+using System;
+using UnityEngine;
+
+namespace UnityStandardAssets.Effects
+{
+    public class ParticleSystemMultiplier : MonoBehaviour
+    {
+        // a simple script to scale the size, speed and lifetime of a particle system
+
+        public float multiplier = 1;
+
+
+        private void Start()
+        {
+            var systems = GetComponentsInChildren<ParticleSystem>();
+            foreach (ParticleSystem system in systems)
+            {
+				ParticleSystem.MainModule mainModule = system.main;
+				mainModule.startSizeMultiplier *= multiplier;
+                mainModule.startSpeedMultiplier *= multiplier;
+                mainModule.startLifetimeMultiplier *= Mathf.Lerp(multiplier, 1, 0.5f);
+                system.Clear();
+                system.Play();
+            }
+        }
+    }
+}