We have a similar problem in many other games. For us, this is not a one-time occurence.
There are two videos included with this instructable. A video demonstrating the assembly of the ciruit and a video demonstrating the intended use.
There are more ways to achieve our goal than just this method. Alternative methods will show up as future instructables. I just have some video editing and text drafting to do, first. So, for now, enjoy!
Step 1: Safety Concerns.
Step 2: You may need ... So lookie here and go get you some.
XBox 360 Controller with Batteries or Change and Play cable
Texas Instruments MSP430 LaunchPad or other microcontroller
M430G2553 for the LaunchPad or other microcontroller as appropriate
Breadboard Jumper Wires
2.2k Ohm Resistor
Breadboard Power Supply (Dual Rail 3.3v and 5v DC)
Battery Pack or Wall Wart or Other Power Supply (12v DC)
Alligator Clips (3)
Small Regular Head Screw Driver
Rubber Band or Elastic
Blue Painters' Tape
An XBox 360
.32 caliber firearm
Video of how to assemble the circuit
A Few Minutes Of You Life That You Don't Have Anything Better To Do With