How do you use a custom character in tekken 6?

In Tekken 6, you can create a custom character by using the character customization feature available in the game. To do this, select a character and enter the customization menu, where you can modify their appearance, outfits, and accessories using the in-game currency earned through gameplay. Once you've customized your character, simply select them in the character selection screen to use them in battles. Remember that customizations are cosmetic and do not affect gameplay mechanics.