If you have been having trouble with the first land boss, here is all you need to do. When you turn into a sword fish the enemy will fire the fist shell, It will chase you about, but very slowly and its not really a problem. When it stops and starts opening and closing, while it is open, ram it towards the boss and it should hurt him. Then quickly go to the bottom right hand corner and you will be out of range of his triple shell shot. Repeat these actions until he is dead!