Creating a Game Menu and a Particles Effect: An Angry Birds-like Game, Part II - Learn GameSalad for iOS: Game Development for iPhone, iPad, and HTML5 - page 209

Figure 7-12. Actor Editor view of Hard Block
Now, let's play a little with the Particles behavior.
Import the image located in the Chapter7_Files folder named star.png into the
Image library of your project.
Open the Target actor in the Actor Editor. Create a new rule and name it ''Target
Destruction.'' The condition of the rule is ''Actor receives event'' ''overlaps or
collides'' with ''actor of type'' ''projectile.'' Drag and drop a Particles behavior
and change the settings to:
 Number of Particles: 200
 Particle Startup Time: 1
 Particle Lifetime: 1
 Emitter Offset: 0 & 0
 Direction: random(0,359)
 Relative to: actor
 Speed: 100
 Size: 20
 Size changes to:
 Target Size: 0
 Duration: 1