Go to the sealed cavern, then complete each quest's level to get 1000 emel.
Nightmare Difficulty Mode
Beat the game on any mode.
View movies
Highlight the "Option" selection at the main menu, then hold Circle + R and press Right. A menu with Japanese text will appear. Highlight any option and press X to view the corresponding movie; or select the last option (or press Circle) to return to the main menu.