Ok, it works like this:
Use the mouse to move the ship and press the right button to fire. Very Simple .
Unfortenatly, it will only work for pcs with pixel shaders 2 since I didn't had time to impelemnt a fallback.
In this year it will happen a new Inercia event, the Inercia2005, that is one month ahead. We will present a new shmup for the gamedev compo, this time is a lot better than last one (it has a fallback for older hardware, its already implemented ).