You are right:)
However, I am working rather on a simple 2d game based on old idea. Player is flying a space plane and dropping bombs on enemy units and facilities. There are also enemy fighters which player have to avoid and may destroy them by firing missiles.
Hope, soon I will be ready to share a short movie.
Going back to your game. Music is great:). What is the software you are using?
You can also add some sound effects, for example when you hit something or when player is near monsters can hear their snarl.