How do you defeat the first boss in Extreme Ghostbusters Code Ecto-1?

To defeat the first boss in Extreme Ghostbusters: Code Ecto-1, you need to exploit its attack patterns and use your proton pack effectively. Focus on dodging its projectiles while aiming for its weak spots when it becomes vulnerable. Utilize power-ups and keep your distance to avoid taking damage. Continuously monitor your energy levels to ensure you can sustain your attacks until the boss is defeated.