Tiran: The sound is currently not available because it's still under development(still learning) and will be available in the next releases. For the time being, I focus on the game's features and gameplay (keyboard, bullet billboarding, more bonuses and weapons...).

UPDATE: Bullets billboarding (looks really good!) and png loader are done. The current release uses ~20 mb TGA textures. The next release has ~5 mb png textures. Huge difference!