Dark Cloud 2

Story related and cannot be missed. You will unlock this trophy when Max announces the beginning of Chapter 2.

To beat the chapter 1 boss, you need to use his bombs against him. He will turn his nose into a bomb and throw it in your general direction. Pick it up (guard with and press while in front of it) and throw it back at him (press while still holding it). This will stun him, allowing you to switch to the Ridepod (press ) and hit him for massive damage. Avoid any missiles he sends your way (after taking a picture of it for a scoop). Rinse and repeat until he is no more.

To beat the car that Flotsam uses while you are on the train, use the same strategy with the bombs. Cedric will hand you one, and you need to throw it at Flotsam's car. Do it enough times and you will be set.