Phaser offers a particle system that allows you to spawn dozens (or even hundreds) of all sprites and have them burst out from a given point. You should use a Phaser emitter to spawn an explosion effect whenever an asteroid dies.

Task Definition

Whenever an asteroid is destroyed, emit a burst of particles.

Hints

You will need to find a particle image on the internet to use when an explosion occurs. Search Google for “Explosion Particle” to find a small (16x16 - 32x32 pixel) image that you can spawn 10-20 of when an explosion occurs.

A good example of how to use the Phaser Particle System is shown on this page; Phaser Click Burst Example.

Extensions

  • If you have previously given asteroids health from another bonus quest - you could also decide to spawn a small explosion of sparks when a bullet hits an asteroid but doesn’t destroy it to give the player some feedack. Make sure it’s a lot smaller than your main explosion though!