To unlock new characters, you need to complete specific challenges or achievements within the game. Each character typically has different requirements that can be found in the character selection menu.

Supreme Duelist offers various game modes, including Single Player, Multiplayer, and Challenge Mode. Each mode provides a unique experience, allowing players to either compete against AI or challenge friends.

To customize your character's abilities, navigate to the character menu, select the character you want to customize, and then choose the abilities you wish to equip. Some abilities may require unlocking first.

Improving your combat skills involves practice and understanding each character's strengths and weaknesses. Focus on mastering combos, dodging attacks, and using the environment to your advantage during fights.

To start a multiplayer match with friends, follow these steps: 1. Open the game and go to the main menu. 2. Select the Multiplayer option. 3. Create a room or join an existing one. 4. Share the room code with your friends to allow them to join.