Nice sounds design. Having a few extra lives could help with the difficulty. Maybe you could also think about increasing the fire rate so there's not as much delay between the time you fire and the bullet leaving the ship.
If i vist this kind of idea again, i want to add power-ups to help with that kind of fire rate and other wepons as well, i was going to try to, but as time went on i need to get it to the point of where i could ship and this was the best way to get it set up.
