It's probably the best title in the huge Castlevania saga that finally got ported on the Nintendo DS. There's no console in the world that hasn't had the honor of hosting Konami's masterpiece and our favorite vampire hunting heroes are back, with the same manga hair-styles and the trademark whip that would make Indiana Jones jealous. You will be able to control two different characters: vampire hunter Jonathan Morris and Charlotte Aulin, a young witch. Also, you can switch characters whenever you want or combine their powers into extremely powerful combos.

Castlevania: Portrait of Ruin is a platform game with RPG stat-building elements. Similar to the Metroid series, certain areas are inaccessible until the player defeats key enemies and obtains critical items. Along the way, the player must defeat a horde of monsters that roam the various rooms of the castle with the weapons he or she finds along the way. The more enemies the player defeats and the stronger the enemy, the more experience points they get, which enables them to level up and improve their abilities. 

UNLOCKABLES

Richter mode
Defeat the Whip Memory and Dracula at the end of the game.

Sisters mode
Defeat the Whip Memory and Dracula at the end of the game.

Birthday cake
Set your birthday in the DS system settings to the current date. Then, go to Vincent the shopkeeper. A birthday cake that costs 3,000 will be offered for sale.

Magus Ring
Successfully complete all of Wind's quests to get the Magus Ring. It regenerates your magic points quickly.

Boss Rush bonuses

Complete the indicated Boss Rush course under the listed time to get the corresponding bonus.

Astral Ring: Boss Rush Course 1 in 1 minute. 
Illusion Fist: Boss Rush Course 2 in 5 minutes. 
Invisible Cape: Boss Rush Course 1 in 3 minutes. 
Record 1: Boss Rush Course 2 in 3 minutes. 
Record 2: Boss Rush Course 3 in 3 minutes. 
Scout Armor: Boss Rush Course 3 in 5 minutes.

Hard mode bonuses

Complete Hard mode with the indicated level cap to unlock the corresponding bonus. 
Konami Man trophy and +50 Strength: Level 1 cap. 
Twin Bee trophy and +50 Intelligence: Level 25 cap. 
Vic Viper trophy and +50 Luck: Level 50 cap.

Here's a video of this game: