The SimpleButton class is a sweet way to put sprites together to make a button. The SimpleButton is a light weight alternative to the heavier MovieClip object.

removeChild() does not always remove the object from memory. removeChild() and removeChildAt() actually only remove the object from their parents DisplayObjectContainer. This article tells you how to totally remove a moveclip from memory

When making a flash game, it's always nice to have believable physics. However, having to code your own physics engine is not always so nice. The good news is... you don't have to. Here is a list of AS3 class libraries that make simulating physics relatively easy.

Want to learn a bit about Adobe Flash and programming with ActionScript 3? You might find this list of resources helpful for getting started, or if you find you’ve gotten stuck, it might give you some places for new information you’ve never encountered. Though the list below isn’t fully comprehensive, it provides a wide variety of ways to learn about Flash and AS3.