Hi there, I am very new to programming and learning from examples such as "Appsamuck", in particular an application/game with a stoplight and a gas pedal. The object is to hit the gas pedal as fast as you can when the light turns green: http://appsamuck.com/day6.html (The project file is downloadable with all the code) I understand most of this except that I don't know: * Where is the code to utilize the image of the gas pedal? * Where is the code to utilize the image of the background? * Where is the code for handling the touching of the pedal image is located? I've looked throughout the code files and XIB files without luck. I understand the rest of the example and it has taught me a lot but I am stuck with this. Also, I know how to play a short sound: NSString *path = [[NSBundle mainBundle] pathForResource"myCustomSound" ofType"wav"]; SystemSoundID soundID; AudioServicesCreateSystemSoundID((CFURLRef) [NSURL fileURLWithPathath] , &soundID); AudioServicesPlaySystemSound (soundID); I am wondering, where I would add this (as an IBAction perhaps?) in the code in order to play a short sound as each of the lights change and another as the pedal is pressed? Sorry if this is obvious, I am trying to learn from the code examples and by attempting to modify them. Thanks!