Castlevania: Portrait of Ruin Cheats (Nintendo DS)

Go to City of Haze and use the first warp to reach the second warp. Drop down and keep
moving left through about two rooms until you reach a room full of zombies. Continue to
use your subweapon there until the zombies stop coming back or you run out of MP. 

When this happens, go into the room to your left. There should be two lamps and a
chandelier. You can use these to get your MP back once you run out.

Once you've broken all the lights, go back into the room with the zombies and then back
into the room with the lights to get more hearts. Continue doing this until MP is full.
Then, continue to kill zombies.

You may repeat this process as many times as you like or as many times needed for the
mastery of your specific subweapon. Since zombies only have eight HP and since there are
many lights near by, this is the most convenient spot for mastering subweapons.

In Wind's room (where you do the quests), after you complete a quest then go to the quest
menu and choose a completed quest and press the A button twice, you will hear a chime and
find that you get a reward item. You can do this as many times as you like until you get 9
of each reward.

You can pick this up from an Old Axe Armor in Forgotten City, Dark Academy, and  Burnt
Paradise. You have .69% chance of getting this item, but if you do, it ensures that each
damaging hit you take will only take of 10% off your max hit hit points. This is good for
trying to go through the game on hard mode with Level Cap 1.

You must defeat the whip memory at the end of the game and kill Dracula to unlock Richter
Mode.

If you can get the best ending, you unlock the following :

Richiter and Sisters Mode: Start a new game with a different duo.

Boss Rush Courses 2 and 3: Available at the Boss Rush menu.

Hard Difficulty: You can place a max level cap here too.

New Game with Goodies: Start a new game on your clear data.

Sound Mode: Available at the main menu.

You must finish Course 1 in a minute.

If you select the map in the menu section, you have the option to use markers with the
touch screen that help you make note key areas that you want to remember.

For Boss Rush Mode, clear the course in 1 in 3 minutes.