Silent Hill 4: The Room Cheats

To get a 10-Star rating at the end of the game you must do a harder challenge through out the game to gain it.
Things which needed to be done:
- Finish the game before 120 mins (2 hours)
- Kill 150 or more monsters
- Colect all notes/memos (52/52)
- No saves
- The game must be on hard difficulty
(note: the ending doesn't matter)