Detect motion with the PIR sensor Play fuse.wav (aka Tsssssssss...) via the Wave Shield Trigger the "Forward" button on the RC car remote for 2 seconds Play explode.wave via the Wave Shield Wait 10 seconds and reset

Next step electronics! My program basically works like thisI've included a wiring diagram that explains how this monster is hooked up.The PIR sensor was really easy to hook up using the instructions available on Adafruit's website. I imagine any sensor that measures distance or detects motion could be used in place of this. I will say (for better or worse) using the example code for the PIR sensor made it very sensitive, maybe too sensitive. The RC car came with a simple remote that contained four momentary micro push buttons. I just wired into one side of the "forward" button and used the Arduino to turn the button. I also removed most of the body of the RC car leaving just the wheels, motors and frame. I copied the in game sound effects from Minecraft to the SD card in the wave shield for playback. The output volume of the Wave Shield on it's own is pretty quiet so I ran it through the CMoy Amp to boost it's volume to a appropriately scary level. After I was sure I had everything working I used some standard craft hot glue to glue the speaker and PIR sensor inside of the Creeper body. I also glued the back of the body closed because as I learned it's nearly impossible to get tape to stick to acrylic paint.