Yu-Gi-Oh! The Duelists of the Roses Gameplay

Gameplay
The dueling rules differ from the ones that are in the present time and that they are under the "Perfect Rule." In this way there is a crude form of movement and a Deck Leader. Deck Leaders are monster cards that are needed to play cards from the hand; they represent your Life Points (LP). Any attack to your Deck Leader is considered to be a Direct Attack to your LP. Monsters have ranks, the lowest being a Private and the highest being SD or Secretary of Defense. Through ranks, they can learn different abilities to help enhance other cards. Depending on its role during a duel, a monster will promote through ranks. A soldier can not be use as a Deck Leader until it achieved a rank. Usually monsters with Level Stars of 3 or less get more or special abilities.

Card Movement
Card movement is a simple card moving rule where you can only move the cards left, right, forwards, or backwards along the field. This movement capability is multiplied when there is a terrain movement bonus (see below). Some cards have the ability to transform such as Cocoon of Evolution is now a power-up and Shadow Ghoul can transform into a Wall Shadow when it is moved into Labyrinth Terrain.

Terrain
The field takes the form of a chessboard with each of the "squares" in the field usually being different terrain. Monsters that are powered up by being in favorable terrain get a movement bonus and 500 ATK/DEF points.

Here is a list of all of the terrain and their effects on the monsters:

Deck Cost
Each card has a Deck Cost which can be used to determine the overall power of the card. Each card that is added to the deck increases the Deck Cost by the card's cost (e.g. a card with a cost of 24 will increase the deck's cost by 24). During the Campaign Mode, you cannot duel someone if you have a higher total Deck Cost than your opponent. This helps to keep players from completely dominating their opponent.

3D Monsters
The Duelists of the Roses shows the monster itself hovering above the card when it is face up on the field. When monster battles are set to "Display" in the options menu (which you can bring up at any time during a Duel) when two monsters come into contact the screen switches to a detailed arena representing the current field terrain with the two monsters on either side of the arena. After a few moments the two monsters battle and the winner then roars or dances its approval over the victory of the battle.

Passwords
Players may obtain secret passwords through Kaiba's Chain Pieces found at the end of each story mode side. These passwords may be entered through the deck construction menu. The monsters/traps/spells unlocked by the passwords are usually very powerful and can be used strategically.