Underground Laboratory/Game Room/Containment Room
Escape the laboratory and destroy Cutlass on your way. Use shotgun to stun them. In Containment Room destroy Bianco Angelos.
Foris Falls/Angel Creations
In Foris Falls area go upstairs. In Angelo Creations factory destroy knights and leave this place.
Underground Laboratory/Grand Hall
Use red platform to reach the top of the shaft. In Grand Hall take all Orbs and leave a castle.
Fortuna Castle Gate/Second Mining Area
Destroy Basiliks ( on the stairs you can find secret mission 11). Don't forget to destroy Red Orb Statue in mines.
He's not harder than he was last time, so beat him until he's dead. When he burns out, use Devil Trigger.