The midi you are listening to, 'It's All Over Now', is by The Rolling Stones.
Find out more about them and their music here.

This games doesn't neet a lot of instructions - just use your mouse button to fire on the enemy and stay alive as long as you can. Due to the amount of system resources needed to run this game, it's best to. turn off the midi before playing the game.

Play as much as you like, return as often as you dare :)