Christopher Howard <christopher.howard@frigidcode.com>
http://frigidcode.com

Some sound effects were adapted from the following works:
- Alien Machine Gun
  | License: http://www.creativecommons.org/licenses/by/3.0/
  | Recorded by Matt Cutillo
  | soundbible.com
- Grenade Sound
  | License: http://www.creativecommons.org/licenses/by/3.0/
  | Recorded by Mike Koenig
  | soundbible.com
- Robot Blip Sound
  | License: http://www.creativecommons.org/licenses/by/3.0/
  | Recorded by Marianne Gagnon
  | soundbible.com