No need to pull the trigger in order to shoot, it has auto-fire.
Enable Viacam Headmouse works. The game is great accuracy training.
Windowed or fullscreen.
Screen shaking effect can be switched off in the menu.
Bullets and coins look quite similar and colorblindness will be rather problematic. There is much going on at the screen.
This is a very simple horizontal Shmup that is insanely hard. You have one life and that is it. Shoot the enemies, earn coins and spend the bucks on a small collection of available powerups. There are no stages or levels. It keeps getting harder all the time. Score is measured in the colns you collect. Powerups cost you ten.