Play midi files in game.
Add mp3s that were converted from MIDI using various soundfonts.
Use mp3s converted from midi files in game.
Add notes.
Fix High Score label and add mp3 files to xcode project.
Add chicken death animation.
Add credits for music and skull image.
Add sound fx files to project.
Add sound fx to game.
Replace crappy level 11.
Normalize sound fx files.
Ensure chicken stays dead at Game Over screen.
Update TODO.