Here’s a link to a site with a lot of sprites sheets for reference. Ever wonder how those animations and tiled backgrounds were made? Taking a look at some of the art here will give you a good idea.
Here’s an example that builds off the last post about creating an explosion sprite. In this example we’ll create some alien sprites that move down the screen. When touched these aliens explode.
The explosion sprite sheet and code was taken from this post: Corona – Sprite Explosion.