Go to the fortress' jamming device. Next to it is a door mounted to the bottom of the fortress. Fly up inside and destroy the four boxes that will take down the shields of the cannons. Fly back down. Go around and fly to the highest point. Take out the cannons with your missiles. Jarvis will tell you to go inside. Tap into the computer and come back out. Destroy the four engines then destroy the top of the craft. Go back inside to another door. Open the big loading bay door and fly inside. There may be a few mines dropped on the city below. Destroy the mine and go back into the loading bay doors. Destroy the big blue cannon to go inside. Straddle between the two orange power engines to complete the level.
