In this episode, create the Obstacle class. Also define the watch-out sign animation, obstacle art and crash art. Finally animate the obstacles from the right side at random vertical points and remove them once they go out of the screen on the left.
This tutorial series is targeted towards developers with intermediate knowledge of Flash ActionScript 3. Watching the previous episodes of this series is recommended.
The tutorial file contains the archive that can be imported in Adobe Flash Builder as an ActionScript project.