From the developer's website: Welcome to a new experience in gameplay mechanics: Beat Hazard Gameplay Powered by YOUR Music! Experience your music collection like never before with this intense music driven arcade shooter. Each of your songs will have its own unique ebb and flow based on the music. Power up your spaceship and watch as the music boosts your firepower. Unleash hell on the enemy ships when you max out with weapon pickups! Beat Hazard seamlessly mixes the love of gaming and music. Together they become greater than the sum of their parts. Picture Unique music driven gameplay Gameplay possibilities as vast as your music collection Go Head to Head in local 2 player mode or work together with local 2 player Co-op mode Can you last a whole album in Survival Mode? 25 Achievements Take on the all new super boss ship Power up and unleash the deadly Beat Hazard weapon Rank up to an Elite rated pilot Includes a kicking rock album to get you started Files types supported: mp3 / wav / ogg / flac / aiff / wma Note: iTunes / aac / m4a are supported via a $1 download