WASD, Space or click to shoot. Health in bottom left, ammo in top left, boss health in top right. Break the barriers it puts up, if your shots reflect back at you then whatever you hit is currently invulnerable. Very difficult, consider dying in endurance phase a win.
NOTE: THIS IS NOT AGAINST ANY RELIGION IN ANY WAY, THE TITLE IS A PURELY ARTISTIC CHOICE A spiritual succession to cursed, but with SIGNIFICANTLY more optimized code 4/28/26: Added special death screen for dying in endurance phase.