Enemy Fire (red one) with a better contrast, particles now leave a trail so it helps to understand the direction of the attacks. The second screenshot shows a "hurt screen", bloody, red to let the player feel visually the damage taken. Among this effect the camera "wobble" when you receive damage, this last script can be found here.
Third screenshot shows a starting point for the player, a special pod where to reappear if the player dies. Le Checkpoint !
Also added a kill cam and some physics to the spaceship when your life reach 0 hp. give it a try to see what's have been accomplished so far !