Soldner-X 2: Final Prototype

Use either the Final Prototype (flame) or the Mexxus II (fog). Try to grab your ships’s respective special weapon to use on the boss as they will do huge damage. If you are unable to acquire it, then use the beam/magma weapon. Also try to save your limit and shockwave attacks as well. Just remember that the boss isn’t always vulnerable so only use your big attacks when it exposed and has a good chunk of usable health.