Improvements since 2012-12-09:

• increased number of sound channels from 8 to 32
• fixed a bug which caused sound effects to be stopped too early
• added screenshot functionality
• disable XRandR usage in SDL - enabled it with the SDL_VIDEO_X11_XRANDR=1 environment variable
• add a workaround to make the game working on Ubuntu's Unity (Compiz)

Improvements since initial release:

• all system supported resolutions can be selected in the game configuration window now
• the binary is dynamically linked and all uncommon libraries are included
• support for other sound drivers like ALSA and Pulseaudio in addition to OSS
• the music, directly in the game, is enabled by default now