Soldner-X 2: Final Prototype

See: 'Ready for the junkyard'. Simplest boss of the bunch. Destroy the turret on his forehead for Phase 1. Pummel the eye with concentrated damage for the rest of the duration. Use your shockwaves and limit attacks as you see fit. He'll eventually spit insect-like enemies from his mouth, which can be easily destroyed with your focused weapon like Magma or Beam. The Bounce Laser is surprisingly useful as well.